Scubapro K2 Light Temperate-Water Thermal Protection Mens Top Drysuit Undergarment

Scubapro | SKU: 78.121.100

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$89.00

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In stock — ships from Irvine, CA

Size

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Scubapro size charts by gear type. Wetsuits and most fins link to their own chart pages. Imperial in bold, metric underneath.

Wetsuits

Scubapro’s wetsuit charts each have their own page:

Rash guards and exposure wear

Scubapro men's and women's exposure protection

Men

Dimensions	Height ft/in · cm	Weight lb · kg
Men
XS	5′5″–5′7″ 165–170	142–167 65–75
S	5′7″–5′9″ 170–175	153–188 70–80
ST	5′9″–5′11″ 175–180	153–188 70–80
MS	5′7″–5′9″ 170–175	164–189 75–85
M	5′9″–5′11″ 175–180	164–189 75–85
MT	5′11″–6′1″ 180–185	164–189 75–85
LS	5′9″–5′11″ 175–180	175–200 80–90
L	5′11″–6′1″ 180–185	175–200 80–90
LT	6′1″–6′3″ 185–190	175–200 80–90
XLS	5′11″–6′1″ 180–185	186–211 85–95
XL	6′1″–6′3″ 185–190	186–211 85–95
XLT	6′3″–6′5″ 190–195	186–211 85–95
2XLS	6′1″–6′3″ 185–190	197–222 90–100
2XL	6′3″–6′5″ 190–195	197–222 90–100
2XLT	6′5″+ >195	197–222 90–100
3XLS	6′3″–6′5″ 190–195	208–235 95–105
3XL	6′5″+ >195	208–235 95–105
4XL	6′5″+ >195	219–244 100–110
5XL	6′5″+ >195	230–255 105–115

Women

Dimensions	Height ft/in · cm	Weight lb · kg
Women
2XS - 0	4′11″–5′1″ 150–155	93–118 42–54
XS - 2	5′1″–5′3″ 155–160	106–131 47–59
S - 4	5′3″–5′5″ 160–165	115–140 52–64
ST - 4T	5′5″–5′7″ 165–170	115–140 52–64
MS - 6S	5′3″–5′5″ 160–165	126–151 57–69
M - 6	5′5″–5′7″ 165–170	126–151 57–69
MT - 6T	5′7″–5′9″ 170–175	126–151 57–69
LS - 8S	5′5″–5′7″ 165–170	137–162 62–74
L - 8	5′7″–5′9″ 170–175	137–162 62–74
LT - 8T	5′9″–5′11″ 175–180	137–162 62–74
XLS - 10S	5′7″–5′9″ 170–175	148–173 67–79
XL - 10	5′9″–5′11″ 175–180	148–173 67–79
XLT - 10L	5′11″–6′1″ 180–185	148–173 67–79
2XLS - 12S	5′9″–5′11″ 175–180	159–184 72–84
2XL - 12	5′11″–6′1″ 180–185	159–184 72–84
3XL - 14	>6′1″ >185	>181 >82
4XL - 16	>6′1″ >185	>181 >82

From Scubapro’s chart: These charts are intended to act as a sizing guide. We recommend that all suits be tried on to ensure a perfect fit. Wetsuit chart applies to the following: Exodry, Everdry 4, Evertech Breathable, NovaScotia Semi-dry, all Everflex wetsuits, Profile 0.5, Sport 7mm Semi-dry, Sport 3,5,7mm steamers, Oneflex wetsuits, Tropical Steamer, Everflex Skin Suit, Everflex Hooded Vest 5mm, Everflex Hooded Vest 2.5mm, Pyroflex Steamers & Tops, Hybrid Jane, Hybrid shorty, Hybrid Shorts, Hybrid Cargo Shorts

Scubapro men's and women's rash guards

Size	Chest in · cm	Waist in · cm	Height ft/in · cm
Men
XS	30–32 77–81	28–29 70–74	5′5″–5′7″ 165–170
S	32–34 82–86	30–31 75–79	5′7″–5′9″ 170–175
M	34–36 87–91	31–33 80–84	5′9″–5′11″ 175–180
L	36–38 92–96	33–35 85–89	5′11″–6′1″ 180–185
XL	38–40 97–101	35–37 90–94	6′1″–6′3″ 185–190
2XL	40–42 102–106	37–39 95–99	6′3″–6′5″ 190–195
3XL	42–44 107–111	39–41 100–104	6′5″–6′7″ 195–200
Women
XS	26–28 66–70	23–25 59–63	5′1″–5′3″ 155–160
S	28–29 70–74	25–26 63–67	5′3″–5′5″ 160–165
M	29–31 74–78	26–28 67–71	5′5″–5′7″ 1675–170
L	31–32 78–82	28–30 71–75	5′7″–5′9″ 170–175
XL	32–34 82–86	30–31 75–79	5′9″–5′11″ 175–180

From Scubapro’s chart: This chart is intended to act as a sizing guide. We recommend that undergarments be tried on to ensure a perfect fit.

Drysuits

Scubapro drysuits use the exposure protection chart above.

Exposure protection chart

Hoods

Scubapro hoods

Size	Head circumference (approx.) in · cm
XS/S	20.5 52
S/M	21 53
M/L	21.5 55
L/XL	22 56
XL/2XL	22.5 57

From Scubapro’s chart: This chart is intended to act as a sizing guide. We recommend that all hoods be tried on to ensure a perfect fit.

Gloves

Scubapro dive gloves

Size	Glove length in · cm	Palm girth in · cm	Glove opening in · cm
2XS	10–11 26–28	7–8 18–20	5–6 14–16
XS	10–11 27–29	7–8 19–21	6–7 15–17
S	11–12 28–30	8–9 20–22	6–7 16–18
M	11–12 29–31	8–9 21–23	7–8 17–19
L	12–13 30–32	9–10 22–24	7–8 18–20
XL	12–13 31–33	9–10 23–25	7–8 19–21
2XL	13–14 32–34	10–11 24–26	8–9 20–22

Tolerance: +- 0.3, .80

Boots and socks

Scubapro men's boots and socks

Men size	USA	UK	EU
3XS	4	3	34–35
2XS	5	4	36
XS	6	5	37–38
S	7	6	39
M	8	7	40–41
L	9	8	42
XL	10	9	43–44
2XL	11	10	45
3XL	12	11	46–47
4XL	13	12	48

BCDs

Scubapro Hydros Pro 2

Height and weight

Size	Height ft/in · cm	Weight lb · kg
XS	4′11″–5′2″ 150–157	95–145 45–65
S	5′2″–5′7″ 157–170	120–155 54–70
M	5′7″–6′0″ 170–183	143–187 65–85
L	5′10″–6′2″ 179–188	176–242 80–110
XL–2XL	6′1″–6′6″ 185–199	220–285 100–130

Cummerbund circumference

Size	Cummerbund circumference in · cm
XS	26–38 66–97
S	27–41 68–105
M	28–46 71–116
L	30–50 76–128
XL–2XL	32–59 81–149

Lift, jacket weight with BPI and jacket weight with AIR2

Size	Lift lb · N	Jacket weight with BPI lb · kg	Jacket weight with AIR2 lb · kg
XS	35 150	8.4 3.8	8.9 4.0
S	35 150	8.4 3.8	8.9 4.0
M	40 170	8.8 4.0	9.4 4.3
L	40 170	8.9 4.1	9.5 4.3
XL–2XL	40 170	8.9 4.1	9.5 4.3

Scubapro Hydros Pro BCD, male and female

Height and weight

Size	Height ft/in · cm	Weight lb · kg
Male
S	5′2″–5′7″ 157–170	120–155 54–70
M	5′7″–6′0″ 170–183	143–187 65–85
L	5′10″–6′2″ 179–188	176–242 80–110
XL–2XL	6′1″–6′6″ 185–199	220–285 100–130
Female
XS–S	4′11″–5′7″ 150–170	95–145 45–65
M	5′3″–5′11″ 160–180	120–170 55–77
L	5′7″–6′1″ 170–185	150–210 68–95

Cummerbund circumference

Size	Cummerbund circumference in · cm
Male
S	26–39 66–99
M	28–45 71–115
L	30–50 76–127
XL–2XL	32–58 81–147
Female
XS–S	26–39 66–99
M	28–45 71–115
L	30–50 76–127

Lift, weight system primary and weight system trim

Size	Lift lb · N	Weight system primary lb · kg	Weight system trim lb · kg
Male
S	36 160	18 8	9 4
M	40.5 180	18 8	9 4
L	40.5 180	18 8	9 4
XL–2XL	40.5 180	18 8	9 4
Female
XS–S	36 160	18 8	9 4
M	36 160	18 8	9 4
L	40.5 180	18 8	9 4

From Scubapro’s chart: This size chart is to be used as a guide only. We recommend a proper fitment before selecting the size.

Scubapro Glide BCD

Height, weight and cummerbund circumference

Size	Height ft/in · cm	Weight lb · kg	Cummerbund circumference in · cm
XS	5′0″–5′5″ 152–165	100–125 45–57	28–36 71–91
S	5′2″–5′7″ 157–170	120–155 54–70	30–38 76–97
M	5′5″–5′10″ 165–178	150–170 68–77	34–43 86–109
L	5′7″–6′0″ 170–183	170–200 77–91	38–46 97–117
XL	6′0″–6′3″ 183–191	195–235 88–107	42–52 107–132
2XL	6′2″–6′5″ 188–196	230–270 104–122	50–60 127–152

Lift and jacket weight with BPI

Size	Lift lb · kg	Jacket weight with BPI lb · kg
XS	22.5 10.2	7.9 3.6
S	29.2 13.2	8.1 3.7
M	31.5 14.2	8.4 3.8
L	31.5 14.2	8.6 3.9
XL	33.7 15.4	8.8 4.0
2XL	38.2 17.3	9.0 4.1

Scubapro Level BCD

Height, weight and cummerbund circumference

Size	Height ft/in · cm	Weight lb · kg	Cummerbund circumference in · cm
XS	5′0″–5′5″ 152–165	99–123 45–56	31–36 79–91
S	5′2″–5′7″ 157–170	119–154 54–70	35–41 89–104
M	5′7″–5′11″ 170–180	150–170 68–77	37–43 94–109
L	5′11″–6′1″ 180–185	170–209 77–95	38–44 97–112
XL	6′1″–6′3″ 185–190	194–240 88–109	40–47 102–119

Lift and jacket weight with BPI

Size	Lift lb · kg	Jacket weight with BPI lb · kg
XS	22.5 10.2	6.4 2.9
S	27 12.2	6.6 3.0
M	29.2 13.2	6.6 3.0
L	33.7 15.4	6.6 3.0
XL	38.2 17.3	6.6 3.0

Scubapro X-Black BCD

Height, weight and cummerbund circumference

Size	Height ft/in · cm	Weight lb · kg	Cummerbund circumference in · cm
S	5′2″–5′7″ 157–170	119–154 54–70	34–36 86–92
M	5′7″–5′11″ 170–180	150–170 68–77	37–41 95–105
L	5′10″–6′1″ 178–185	170–209 77–95	42–46 106–118
XL	6′1″–6′3″ 185–190	194–238 88–108	44–50 113–127
2XL	6′3″–6′6″ 190–198	225–269 102–122	46–54 118–138

Lift and jacket weight with BPI

Size	Lift lb · kg	Jacket weight with BPI lb · kg
S	38.2 17.3	9.5 4.3
M	44.9 20.3	9.7 4.4
L	49.5 22.4	9.9 4.5
XL	56.2 25.5	10.1 4.6
2XL	65.1 29.6	10.3 4.7

Scubapro Seahawk 2 BCD

Height, weight and cummerbund circumference

Size	Height ft/in · cm	Weight lb · kg	Cummerbund circumference in · cm
2XS	4′8″–5′2″ 147–160	79–99 36–45	28–37 72–93
XS	5′0″–5′4″ 152–165	100–123 45–56	30–39 77–99
S	5′2″–5′7″ 157–170	119–154 54–70	30–38 76–97
M	5′7″–5′11″ 170–180	150–170 68–77	32–40 81–102
L	5′10″–6′1″ 178–185	170–209 77–95	38–46 96–116
XL	6′1″–6′3″ 185–190	194–240 88–109	44–52 112–132
2XL	6′2″–6′5″ 188–196	229–271 104–123	50–60 127–152

Lift and jacket weight with BPI

Size	Lift lb · kg	Jacket weight with BPI lb · kg
2XS	38.2 17.3	6.8 3.1
XS	38.2 17.3	6.8 3.1
S	54 24.4	7.0 3.2
M	54 24.4	7.3 3.3
L	54 24.4	7.3 3.3
XL	54 24.4	7.5 3.4
2XL	54 24.4	7.5 3.4

Scubapro Navigator Lite BCD

Height and weight

Size	Height ft/in · cm	Weight lb · kg
2XS–M	4′10″–5′11″ 147–180	79–170 36–77
M–2XL	5′11″–6′5″ 180–196	170–270 77–120

Cummerbund circumference

Size	Cummerbund circumference in · cm
2XS–M	28–40 70–100
M–2XL	40–60 100–150

Lift, jacket weight with BPI and jacket weight with AIR2

Size	Lift lb · kg	Jacket weight with BPI lb · kg	Jacket weight with AIR2 lb · kg
2XS–M	38.2 17.3	5.5 2.5	5.7 2.6
M–2XL	38.2 17.3	6.0 2.7	6.2 2.8

Fins

Each of these Scubapro fin charts has its own page:

Scubapro Go Sport open heel fins

US men	3mm boot	5mm boot	Heavy/dry boot
4 US women 5 · UK 3 · EU 35–36	XS	XS	XS
5 US women 6 · UK 4 · EU 37	XS	XS	S
6 US women 7 · UK 5 · EU 38	S	S	S
7 US women 8 · UK 6 · EU 39–40	S	S	M
8 US women 9 · UK 7 · EU 41	S	M	M
9 US women 10 · UK 8 · EU 42	M	M	L
10 US women 11 · UK 9 · EU 43–44	M	L	L
11 US women 12 · UK 10 · EU 45	L	L	XL
12 US women 13 · UK 11 · EU 46	L	L	XL
13 US women 14 · UK 12 · EU 47	L	XL	XL
14 US women 15 · UK 13 · EU 48–49	XL	XL	—
15 US women 16 · UK 14 · EU 50	XL	XL	—
16 US women 17 · UK 15 · EU 51–52	XL	—	—

Source: Scubapro’s size chart (original chart 1, original chart 2, original chart 3, original chart 4, original chart 5, original chart 6, original chart 7, original chart 8, original chart 9, original chart 10, original chart 11, original chart 12, original chart 13, original chart 14, original chart 15, original chart 16, original chart 17, original chart 18, original chart 19, original chart 20).

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Payment & Security

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Save with Open Box or Used Purchase

Used Scubapro K2 Light Top Undergarment - Men's

Sale price $70.99 Regular price $89.00
Used Scubapro K2 Light Top Undergarment - Men's

Sale price $61.95 Regular price $89.00

Product Information

The SCUBAPRO K2 Light Undersuit Top is a long-sleeve drysuit undergarment built for temperate-water thermal protection, made from a breathable, warm and stretchy light grid plush material patterned after the Everflex 1.5mm line. It works with both trilaminate and neoprene drysuits and can be worn on its own or with the matching K2 Light Undersuit Pants, in seven unisex sizes from XS to 3XL.

Who it is for

This top suits recreational scuba divers and underwater explorers who dive temperate water in a drysuit and want insulation without bulk. Because the tops and pants can be worn separately or together, it also fits divers who want to fine tune layering from dive to dive: top only on milder days, full set when the water turns colder. The unisex sizing range makes it a practical core layer for a wide range of body types.

Key details

Light grid plush material: breathable, warm and stretchy
Design patterned after the SCUBAPRO Everflex 1.5mm line
Compatible with trilaminate and neoprene drysuits
Elastic wrist loops and heel straps help prevent ride-up when pulling on a drysuit
Seven unisex sizes: XS, S, M, L, XL, 2XL, 3XL
Weight approximately 0.29 lb (0.13 kg); product length 25.98 in
Covered by the standard SCUBAPRO warranty

Compatibility and sizing

Sizing is unisex and runs XS through 3XL. The top is sold as a single piece. The companion K2 Light Undersuit Pants are sold separately so you can wear the top alone or complete the set. Because the material is stretchy and low in bulk, it is designed to sit under a drysuit, with elastic wrist loops preventing ride-up.

What's in the box

K2 Light Undersuit Top (one piece, pants sold separately)

DiveCatalog.com is an authorized SCUBAPRO dealer and a real 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 layers well 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

Do the K2 Light Undersuit pants come with this top?

No. This listing is for the K2 Light Undersuit Top only. The matching K2 Light Undersuit Pants are a separate companion piece sold on their own. SCUBAPRO designed the long-sleeve tops and pants to be worn separately or together, so you can buy just the top as a mid layer or add the pants later for a full, customized thermal layering system.

Does the K2 Light Undersuit Top work with a neoprene drysuit or only trilaminate?

It works with both. SCUBAPRO lists the K2 Light Undersuit as compatible with trilaminate and neoprene drysuits. The light grid plush material is stretchy and low in bulk, and the elastic wrist loops help prevent the sleeves from riding up as you pull your arms through drysuit sleeves and seals during donning.

What sizes does the K2 Light Undersuit Top come in?

Seven unisex sizes are offered: XS, S, M, L, XL, 2XL and 3XL. The top measures 25.98 in in product length and weighs about 0.29 lb (0.13 kg). Call DiveCatalog at 888-701-4017 if you want help picking a size.

How warm is the K2 Light Undersuit Top?

SCUBAPRO positions the K2 Light line for temperate-water thermal protection. The light grid plush material is breathable, warm and stretchy, and the design is patterned after the Everflex 1.5mm line, so it adds insulation without much bulk. The matching K2 Light pants can be worn with the top for customized thermal layering.

Brand	SCUBAPRO
Model	K2 Light Undersuit, Top
Product Type	Drysuit undergarment, long-sleeve top
Material	Light grid plush
Design Reference	Patterned after the Everflex 1.5mm line
Thermal Use	Temperate-water thermal protection
Drysuit Compatibility	Trilaminate and neoprene drysuits
Companion Piece	K2 Light Undersuit Pants (sold separately)
Fit Features	Elastic wrist loops and heel straps
Sizes	XS, S, M, L, XL, 2XL, 3XL (unisex)
Weight	0.29 lb (0.13 kg)
Product Length	25.98 in
Item Number (XS)	78.121.100
UPC (XS)	4048336411912
Item Number (S)	78.121.200
Item Number (M)	78.121.300
Item Number (L)	78.121.400
Item Number (XL)	78.121.500
Item Number (2XL)	78.121.600
Item Number (3XL)	78.121.700
Activity	Recreational scuba diving
Warranty	Standard SCUBAPRO warranty
Note	California Proposition 65 warning regarding BPA exposure

Scubapro K2 Light Temperate-Water Thermal Protection Mens Top 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

Do the K2 Light Undersuit pants come with this top?

Does the K2 Light Undersuit Top work with a neoprene drysuit or only trilaminate?

What sizes does the K2 Light Undersuit Top come in?

How warm is the K2 Light Undersuit Top?