Bare Ultrawarmth Mens Base Top Layer Drysuit Undergarment

Q: What sizes does the BARE Ultrawarmth men's base layer top come in?

This men's top is offered in S, M, ML, L, XL, 2XL and 3XL, all in black. BARE uses form-fitting 3D patterning so the layer sits close to the body and reduces bulk under a drysuit. If you are between sizes or layering it over or under another garment, call 888-701-4017 and we will talk through the fit.

Q: How does Omnired infrared technology work in this base layer?

BARE weaves 13 thermo-reactive minerals into the Omnired fabric. Those minerals convert outbound body heat into infrared energy and reflect it back toward the body, which BARE calls its Ultrawarmth Omnired Technology and describes as scientifically validated with FDA-determined heat recovery. The effect comes from the fabric itself, so there is no battery, wiring or heating element to manage.

Q: Can I wear this top under any drysuit, or only BARE suits?

It is designed for use under all BARE drysuits and functions as a base layer worn against the skin. Because it is a 230-gram pullover with flatlock seams, it layers cleanly as a first layer under a drysuit. Pair it with the matching Ultrawarmth Base Layer Pants for a full system.

Q: What are the thumb loops for?

The low-profile retractable thumb loops hold the sleeves in place to assist donning, then retract out of the way.

Bare | SKU: 018140BLK-10S

Refer & Earn

$124.95

Shipping calculated at checkout.

In stock — ships from Irvine, CA

Size

Pickup available at In Store

Usually ready in 2 hours

All Bare size charts on one page. Imperial in bold, metric underneath.

Wetsuits

BARE men's wetsuits

Weight and height

Your size	Weight lb · kg	Height ft/in · cm
XS	120–140 54–63	5′2″–5′4″ 157–167
S	135–155 61–70	5′6″–5′8″ 168–173
M	150–175 68–79	5′8″–5′10″ 173–178
MTALL	150–180 70–82	5′11″–6′1″ 180–184
MLSHORT	160–185 72–84	5′6″–5′8″ 168–173
ML	170–195 77–88	5′10″–6′0″ 178–183
MLTALL	175–200 79–91	6′0″–6′2″ 183–188
LSHORT	180–205 82–93	5′7″–5′9″ 170–175
L	190–215 86–98	5′11″–6′1″ 180–185
LTALL	195–220 88–100	6′1″–6′3″ 185–191
XLSHORT	200–225 91–102	5′8″–5′10″ 173–178
XL	210–235 95–107	6′0″–6′2″ 183–188
XLTALL	215–240 98–109	6′2″–6′4″ 188–193
2XLSHORT	220–245 100–111	5′8″–5′10″ 173–178
2XL	230–255 104–116	6′1″–6′3″ 185–191
3XL	250–275 113–125	6′2″–6′4″ 188–193
4XL	270–295 122–134	6′3″–6′5″ 191–196

Chest, waist and hip

Your size	Chest in · cm	Waist in · cm	Hip in · cm
XS	33–35 84–89	27–29 68–74	34–36 86–91
S	35–37 89–94	29–31 74–79	35–37 89–94
M	37–39 94–99	31–33 79–84	37–39 94–99
MTALL	37–39 94–99	31–33 79–84	37–39 94–99
MLSHORT	39–41 99–104	33–35 84–89	39–41 99–104
ML	39–41 99–104	33–35 84–89	39–41 99–104
MLTALL	39–41 99–104	33–35 84–89	39–41 99–104
LSHORT	41–43 104–109	35–37 89–94	41–43 104–109
L	41–43 104–109	35–37 89–94	41–43 104–109
LTALL	41–43 104–109	35–37 89–94	41–43 104–109
XLSHORT	43–45 109–114	37–39 94–99	43–45 109–114
XL	43–45 109–114	37–39 94–99	43–45 109–114
XLTALL	43–45 109–114	37–39 94–99	43–45 109–114
2XLSHORT	45–47 114–119	39–41 99–104	45–47 114–119
2XL	45–47 114–119	39–41 99–104	45–47 114–119
3XL	47–49 119–124	41–43 104–109	47–49 119–124
4XL	49–51 124–129	43–45 109–114	49–51 124–129

Torso and inseam

Your size	Torso in · cm	Inseam in · cm
XS	25.875 66	28.5 72
S	27.375 70	30 76
M	28.375 72	31 79
MTALL	29.625 75	32 81
MLSHORT	27.625 70	30.25 77
ML	29.375 75	32 81
MLTALL	30.625 78	33 84
LSHORT	28 71	30.5 77
L	30 76	32.5 83
LTALL	31.25 79	33.5 85
XLSHORT	28.125 71	31 79
XL	30.625 78	33 84
XLTALL	31.875 81	34 86
2XLSHORT	28.5 72	31.25 79
2XL	31.25 79	33.5 85
3XL	31.875 81	34 86
4XL	32.375 82	34.5 87

How Bare measures

Wear minimal clothing (ie. T-Shirt, shorts, bathing suit) at the time of measuring. All measurements must be taken with a soft tape measure pulled snug but not tight. Stand straight, looking forward with your feet flat on the floor. It is best to have help taking the measurements, in order to remain in the optimal measuring stance.

Weight: As close as you can accurately.
Height: From the top of your head to the floor.
Chest: Measure around the fullest part.
Waist: Measure around the narrowest part.
Hip: Measure around the fullest part.
Torso: Top of shoulder to crotch vertically.
Inseam: Measure from crotch to floor.

Bare women's wetsuits

Height

Your size	Height ft/in · cm
2	5′2″–5′4″ 157–163
4	5′3″–5′5″ 160–165
4Tall	5′5″–5′7″ 165–170
6	5′4″–5′6″ 163–168
6Tall	5′7″–5′9″ 168–173
6+	5′4″–5′6″ 163–168
8	5′5″–5′7″ 165–170
8Tall	5′9″–5′11″ 175–180
8+	5′5″–5′7″ 165–170
10	5′6″–5′8″ 168–173
10+	5′6″–5′8″ 168–173
12	5′7″–5′9″ 170–175
12+	5′7″–5′9″ 170–175
14	5′8″–5′10″ 173–178

Chest, waist, hip and inseam

Your size	Chest in · cm	Waist in · cm	Hip in · cm	Inseam in · cm
2	30–32 76–81	23–25 58–64	33–35 84–89	29.875 75
4	32–34 81–86	25–27 64–69	35–37 89–94	30.5 77
4Tall	32–34 81–86	25–27 64–69	35–37 89–94	31.75 81
6	34–36 86–91	27–29 69–74	37–39 94–99	31.125 79
6Tall	34–36 86–91	27–29 69–74	37–39 94–99	33 84
6+	37–39 94–99	33–35 84–89	43–45 109–114	31.125 79
8	36–38 91–97	29–31 74–79	39–41 99–104	31.75 81
8Tall	36–38 91–97	29–31 74–79	39–41 99–104	34 86
8+	39–41 99–104	35–37 89–94	45–47 114–119	31.75 81
10	38–40 97–102	31–33 79–84	41–43 104–109	32.375 82
10+	41–43 104–109	37–39 84–99	47–49 119–125	32.375 82
12	40–42 102–107	33–35 84–89	43–45 109–114	33 84
12+	43–45 109–114	39–41 99–104	49–51 125–130	33 84
14	42–44 107–112	35–37 89–94	45–47 114–119	33.625 85

How Bare measures

Wear minimal clothing (i.e. T-shirt, shorts, bathing suit) at the time of measuring. All measurements must be taken with a soft tape measure pulled snug but not tight. Stand straight, looking forward with your feet flat on the floor. It is best to have help taking the measurements, in order to remain in the optimal measuring stance.

Height: From the top of your head to the floor.
Chest: Measure around the fullest part.
Waist: Measure around the narrowest part.
Hip: Measure around the fullest part.
Inseam: Measure from crotch to floor.

Drysuits

BARE men's drysuits

Weight and height

Your size	Weight lb · kg	Height ft/in · cm
S	135–155 61–70	5′6″–5′8″ 168–173
MSHORT	140–165 63–75	5′5″–5′7″ 165–170
M	150–175 68–79	5′8″–5′10″ 173–178
MTALL	150–180 70–82	5′11″–6′1″ 180–184
MLSHORT	160–185 72–84	5′6″–5′8″ 168–173
ML	170–195 77–88	5′10″–6′0″ 178–183
MLTALL	175–200 79–91	6′0″–6′2″ 183–188
LSHORT	180–205 82–93	5′7″–5′9″ 170–175
L	190–215 86–98	5′11″–6′1″ 180–185
LTALL	195–220 88–100	6′1″–6′3″ 185–191
XLSHORT	200–225 91–102	5′8″–5′10″ 173–178
XL	210–235 95–107	6′0″–6′2″ 183–188
XLTALL	215–240 98–109	6′2″–6′4″ 188–193
2XLSHORT	220–245 100–111	5′8″–5′10″ 173–178
2XL	230–255 104–116	6′1″–6′3″ 185–191
3XLSHORT	240–265 95–106	5′8″–5′10″ 173–178
3XL	250–275 113–125	6′2″–6′4″ 188–193
4XLSHORT	260–285 118–129	5′8″–5′10″ 173–178
4XL	270–295 122–134	6′3″–6′5″ 191–196

Chest, waist and hip

Your size	Chest in · cm	Waist in · cm	Hip in · cm
S	35–37 89–94	29–31 74–79	35–37 89–94
MSHORT	37–39 94–99	31–33 79–84	37–39 94–99
M	37–39 94–99	31–33 79–84	37–39 94–99
MTALL	37–39 94–99	31–33 79–84	37–39 94–99
MLSHORT	39–41 99–104	33–35 84–89	39–41 99–104
ML	39–41 99–104	33–35 84–89	39–41 99–104
MLTALL	39–41 99–104	33–35 84–89	39–41 99–104
LSHORT	41–43 104–109	35–37 89–94	41–43 104–109
L	41–43 104–109	35–37 89–94	41–43 104–109
LTALL	41–43 104–109	35–37 89–94	41–43 104–109
XLSHORT	43–45 109–114	37–39 94–99	43–45 109–114
XL	43–45 109–114	37–39 94–99	43–45 109–114
XLTALL	43–45 109–114	37–39 94–99	43–45 109–114
2XLSHORT	45–47 114–119	39–41 99–104	45–47 114–119
2XL	45–47 114–119	39–41 99–104	45–47 114–119
3XLSHORT	47–49 119–124	41–43 104–109	47–49 119–124
3XL	47–49 119–124	41–43 104–109	47–49 119–124
4XLSHORT	49–51 124–129	43–45 109–114	49–51 124–129
4XL	49–51 124–129	43–45 109–114	49–51 124–129

Torso and inseam

Your size	Torso in · cm	Inseam in · cm
S	27.375 70	30 76
MSHORT	26.875 68	29.5 75
M	28.375 72	31 79
MTALL	29.625 75	32 81
MLSHORT	27.625 70	30.25 77
ML	29.375 75	32 81
MLTALL	30.625 78	33 84
LSHORT	28 71	30.5 77
L	30 76	32.5 83
LTALL	31.25 79	33.5 85
XLSHORT	28.125 71	31 79
XL	30.625 78	33 84
XLTALL	31.875 81	34 86
2XLSHORT	28.5 72	31.25 79
2XL	31.25 79	33.5 85
3XLSHORT	28.5 72	31.25 79
3XL	31.875 81	34 86
4XLSHORT	28.5 72	31.25 79
4XL	32.5 82	34.5 87

BARE women's drysuits and underwear

Weight and height

Your size	Weight lb · kg	Height ft/in · cm
XSshort	110–115 50–52	5′0″–5′2″ 152–157
XS	100–125 45–57	5′3.5″–5′5.5″ 161–166
sshort	110–135 50–61	5′1″–5′3″ 155–160
S	120–145 54–66	5′5″–5′7″ 165–170
mshort	130–155 59–70	5′2″–5′4″ 157–162
M	140–165 64–75	5′6.5″–5′8.5″ 169–174
MTALL	145–170 66–77	5′9.5″–5′11.5″ 176–181
lshort	150–175 68–80	5′3.5″–5′5.5″ 161–166
L	160–185 73–84	5′8″–5′10″ 173–178
xlshort	170–195 77–88	5′5″–5′7″ 165–170
XL	180–205 82–93	5′9.5″–5′11.5″ 176–181

Chest, waist, hip and torso

Your size	Chest in · cm	Waist in · cm	Hip in · cm	Torso in · cm
XSshort	32–35 81–89	23–26 58–66	33–36 84–91	22.25 57
XS	32–35 81–89	23–26 58–66	33–36 84–91	23.25 59
sshort	35–38 89–97	26–29 66–74	36–39 91–99	22.75 58
S	35–38 89–97	26–29 66–74	36–39 91–99	24.25 62
mshort	38–41 97–104	29–32 74–81	39–42 99–107	23 58
M	38–41 97–104	29–32 74–81	39–42 99–107	25.25 64
MTALL	38–41 97–104	29–32 74–81	39–42 99–107	26.5 67
lshort	41–44 104–112	32–35 81–89	42–45 107–114	24 61
L	41–44 104–112	32–35 81–89	42–45 107–114	26.25 67
xlshort	44–47 112–119	35–38 89–97	45–48 114–122	25 63
XL	44–47 112–119	35–38 89–97	45–48 114–122	27.25 69

Inseam

Your size	Inseam in · cm
XSshort	28.75 73
XS	31.25 79
sshort	29.25 74
S	31.75 81
mshort	30 76
M	32.25 82
MTALL	34 86
lshort	30.5 77
L	32.75 83
xlshort	31 79
XL	33.25 84

How Bare measures

Weight: As close as you can accurately
Height: From the top of your head to the floor
Chest: Measure around the fullest part
Waist: Measure around the narrowest part
Hip: Measure around the fullest part
Torso: Top of shoulder to crotch vertically
Inseam: Measure from crotch to floor

Exowear

BARE Exowear hooded vest

Your size	Height ft/in · cm	Chest in · cm	Waist in · cm
2XS	<5′4″ <162	31–33 79–84	25–27 64–69
XS	5′4″–5′6″ 162–168	33–35 84–89	27–29 69–74
S	5′6″–5′8″ 168–173	35–37 89–94	29–31 74–79
M	5′8″–5′10″ 173–178	37–39 94–99	31–33 79–84
ML	5′10″–6′0″ 178–183	39–41 99–104	33–35 84–89
L	5′11″–6′1″ 180–185	41–43 104–109	35–37 89–94
XL	6′0″–6′2″ 183–188	43–45 109–114	37–39 94–99
2XL	6′1″–6′3″ 185–191	45–47 114–119	39–41 99–104
3XL	6′2″–6′4″ 188–193	47–49 119–124	41–43 104–109

How Bare measures

Wear minimal clothing (ie. T-Shirt, shorts, bathing suit) at the time of measuring. All measurements must be taken with a soft tape measuring tape pulled snug but not tight. Stand straight, looking forward with your feet flat on the floor. It is best to have help taking the measurements, in order to remain in the optimal measuring stance.

Weight: As close as you can accurately.
Height: From the top of your head to the floor.
Chest: Measure around the fullest part.
Waist: Measure around the narrowest part.

Hoods

BARE dive hoods

Your size	Forehead in · cm	Neck in · cm
XS	21 53	13 35
S	21.5 54.5	14 35.5
M	22.5 57	15 38
L	23.5 59.5	16 40.5
XL	24 61	17 43
2XL	24.5 62.5	18 45.5

How Bare measures

Your suit may fit perfectly but sometimes little things can affect a diver's experience. A hood that bunches or lets water in is just enough discomfort to change the focus of a dive. Our hoods are designed with anatomical fit so it is important to measure for the perfect fit.

Forehead: Start in the center, front and measure around the widest part.
Neck: Start in the center, front and measure around the middle of the neck.

Gloves

BARE dive gloves

Your size	Palm circumference in · cm	Palm length in · cm
3XS	5.75–6.25 14.5–16	5.75–6.25 14.5–16
2XS	6.5–7 16.5–18	6.5–7 16.5–18
XS	6.75–7.25 17–18.5	6.75–7.25 17–18.5
S	7.25–7.75 18.5–19.5	7–7.5 18–19
M	7.75–8.25 19.5–21	7.5–8 19–20.5
L	8–8.5 20.5–21.5	7.75–8.25 19.5–21
XL	8.5–9 21.5–23	8–8.5 20.5–21.5
2XL	8.75–9.25 22–23.5	8.25–8.75 21–22

How Bare measures

To complete your exposure protection system, it is important to have the proper fitting gloves. Measure A & B as described and use the chart to determine your unisex size.

A: Palm Circumference
B: Palm Length

Boots

BARE unisex boots

Your size	Foot length in · cm
04 USA men's 4 · USA women's 5.5 · UK men's 3 · UK women's 2.5 · Euro size 34–35	8 2/3 22
05 USA men's 5 · USA women's 6.5 · UK men's 4 · UK women's 3.5 · Euro size 36	9 23
06 USA men's 6 · USA women's 7.5 · UK men's 5 · UK women's 4.5 · Euro size 37–38	9 1/2 24
07 USA men's 7 · USA women's 8.5 · UK men's 6 · UK women's 5.5 · Euro size 39	9 7/8 25
08 USA men's 8 · USA women's 9.5 · UK men's 7 · UK women's 6.5 · Euro size 40–41	10 1/4 26
09 USA men's 9 · USA women's 10.5 · UK men's 8 · UK women's 7.5 · Euro size 42	10 2/3 27
10 USA men's 10 · USA women's 11.5 · UK men's 9 · UK women's 8.5 · Euro size 43–44	11 28
11 USA men's 11 · USA women's 12.5 · UK men's 10 · UK women's 9.5 · Euro size 45–46	11 1/2 29
12 USA men's 12 · USA women's 13.5 · UK men's 11 · UK women's 10.5 · Euro size 47–48	11 7/8 30
13 USA men's 13 · USA women's 14.5 · UK men's 12 · UK women's 11.5 · Euro size 49–50	12 1/4 31

How Bare measures

To complete your exposure protection system, it is important to have the proper fitting boot. One that bunches or causes discomfort can be an unnecessary distraction during your adventure. Use the chart to see what standard size is the Unisex BARE size.

Kids’ wetsuits

BARE kids' wetsuits

Your size	Weight lb · kg	Height ft/in · cm	Chest in · cm
02 (2 YRS)	30–40 14–18	2′10″–3′2″ 86–97	20–23 51–58
04 (4 YRS)	40–50 18–23	3′4″–3′8″ 101–112	22–24 56–61
06 (6 YRS)	45–60 20–27	3′10″–4′2″ 117–127	24–26 61–66
08 (8 YRS)	55–70 25–32	4′4″–4′7″ 132–140	26–28 66–71
10 (10 YRS)	65–85 30–39	4′7″–4′10″ 140–147	28–30 71–76
12 (12 YRS)	80–100 36–45	4′10″–5′1″ 147–155	30–32 76–81
14 (14 YRS)	95–120 43–55	5′1″–5′4″ 155–162	32–34 81–86
16 (16 YRS)	115–140 52–64	5′4″–5′7″ 162–170	34–36 86–91

How Bare measures

Weight: As accurate as possible.
Height: From the top of the head to the floor.
Chest: At the widest part.

Source: Bare’s size chart and Bare’s current size chart. Values in the second unit come from Bare’s own chart where it prints them.

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Save with Open Box or Used Purchase

Open Box Bare Ultrawarmth Base Layer Top, Mens

Sale price $99.95 Regular price $124.95

Product Information

The BARE Ultrawarmth Mens Base Top Layer Drysuit Undergarment is a men's pullover base layer top built from 230-gram Omnired Infrared stretch fleece, designed to be worn under a drysuit for warmth and moisture management. It pairs a smooth outer face for easy layering with a fleece-brushed back that wicks moisture and carries Microban antimicrobial odor control, and BARE's Omnired technology uses 13 thermo-reactive minerals woven into the fabric to convert outbound body heat into infrared energy and reflect it back to the body.

Who it is for

This top is for male drysuit divers who want a form-fitting first layer that controls moisture and adds warmth without bulk. The high warmth-to-weight ratio and quick-drying surface suit repetitive dives and surface intervals with the suit vented. It is designed for use under all BARE drysuits and can be worn with the matching Ultrawarmth Base Layer Pants for a full base layer system.

Key details

Fabric: 230-g Omnired Infrared stretch fleece, PFC-free construction
Faces: smooth exterior for easy layering, fleece-brushed interior for warmth and wicking
Seams: flatlock, to minimize chafing under a drysuit
Style: pullover with a low crew neck and low-profile retractable thumb loops
Fit: form-fitting 3D patterning to reduce bulk
Color: black

Compatibility and sizing

Offered here in men's sizes S, M, ML, L, XL, 2XL and 3XL, all in black. BARE builds this top as a base layer, so it is intended to sit under a drysuit, on its own or with the matching pants. The retractable thumb loops hold the sleeves in place while you pull on the drysuit, then tuck away.

What's in the box

BARE Ultrawarmth Base Layer Top, men's, black
Packaged in a cardboard box

DiveCatalog.com is an authorized BARE dealer and a dive shop in Irvine, California since 2003. Call 888-701-4017 or start a chat if you want help choosing a size or confirming it works with your drysuit.

⚠️ WARNING: This product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.

Frequently Asked Questions

What sizes does the BARE Ultrawarmth men's base layer top come in?

This men's top is offered in S, M, ML, L, XL, 2XL and 3XL, all in black. BARE uses form-fitting 3D patterning so the layer sits close to the body and reduces bulk under a drysuit. If you are between sizes or layering it over or under another garment, call 888-701-4017 and we will talk through the fit.

How does Omnired infrared technology work in this base layer?

BARE weaves 13 thermo-reactive minerals into the Omnired fabric. Those minerals convert outbound body heat into infrared energy and reflect it back toward the body, which BARE calls its Ultrawarmth Omnired Technology and describes as scientifically validated with FDA-determined heat recovery. The effect comes from the fabric itself, so there is no battery, wiring or heating element to manage.

Can I wear this top under any drysuit, or only BARE suits?

It is designed for use under all BARE drysuits and functions as a base layer worn against the skin. Because it is a 230-gram pullover with flatlock seams, it layers cleanly as a first layer under a drysuit. Pair it with the matching Ultrawarmth Base Layer Pants for a full system.

What are the thumb loops for?

The low-profile retractable thumb loops hold the sleeves in place to assist donning, then retract out of the way.

Brand	BARE
Model	Ultrawarmth Base Layer Top
Fit	Men's, form-fitting 3D patterning
Material	230-g Omnired Infrared stretch fleece
Outer face	Smooth, for easy layering
Inner face	Fleece-brushed
Treatment	Microban antimicrobial odor control; moisture wicking and quick dry
Technology	Ultrawarmth Omnired, 13 thermo-reactive minerals, FDA-determined heat recovery
Seams	Flatlock, to minimize chafing
Style	Pullover with low crew neck and low-profile retractable thumb loops
Color	Black
Chemistry	PFC-free
Sizes offered	S, M, ML, L, XL, 2XL, 3XL
Manufacturer style number	018140
Use	Drysuit undergarment base layer
Matching piece	Ultrawarmth Base Layer Pants

Bare Ultrawarmth Mens Base Top Layer Drysuit Undergarment

Pick an accessory — 90% off with your $250+ order

Payment & Security

Save with Open Box or Used Purchase

Product Information

Who it is for

Key details

Compatibility and sizing

What's in the box

Frequently Asked Questions

What sizes does the BARE Ultrawarmth men's base layer top come in?

How does Omnired infrared technology work in this base layer?

Can I wear this top under any drysuit, or only BARE suits?

What are the thumb loops for?