Waterproof Warmtech 300g HD Undersuit

Waterproof | SKU: WP-WARMTECHD-XS

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Product Information

The Waterproof Warmtech 300g HD Undersuit is a men's drysuit undergarment from Waterproof, worn as a thermal layer underneath a drysuit, and it is offered in eight sizes from XS to 3XL so divers of different builds can find a fit.

Who it is for

This undersuit suits divers who already dive in a drysuit and want an additional insulating layer underneath it for cooler water or longer dive times. It is offered in eight sizes, XS through 3XL, so a range of body types can find a fit.

Key details

Men's full-body drysuit undergarment style.
The model name includes the 300g HD designation.
Available in eight sizes: XS, S, M, ML, L, XL, 2XL, and 3XL.
Brand: Waterproof.

Compatibility and sizing

This undersuit is intended to be worn underneath a drysuit. Because drysuit undergarment fit depends on the specific drysuit it will be worn with, divers should confirm sizing against their existing drysuit before ordering.

DiveCatalog.com is an authorized Waterproof dealer and a dive shop in Irvine, California, serving divers since 2003. Call 888-701-4017 or chat with us if you have questions about sizing or how this undersuit fits under 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 Waterproof Warmtech 300g HD Undersuit come in?

It is offered in eight sizes: XS, S, M, ML, L, XL, 2XL, and 3XL. Each size has its own SKU, so you can order the exact fit you need. If you are between sizes or unsure how it will layer under your drysuit, call DiveCatalog.com at 888-701-4017 for sizing help.

Is the Warmtech 300g HD Undersuit worn on its own or under a drysuit?

It is a drysuit undergarment, meaning it is designed to be worn underneath your drysuit as an insulating base layer rather than as a standalone exposure suit. Because fit depends on the drysuit it will be paired with, confirm compatibility with your specific drysuit before ordering.

How do I pick the right size of this undersuit for my drysuit?

Sizing is not published for this undersuit; call DiveCatalog.com at 888-701-4017 for guidance on fit under your drysuit.

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Excellent wetsuit but will it crush quickly like other wetsuits?

I purchased a BARE 5mm Reactive wetsuit (open box), which was like new, to replace my 1.5 yr old BARE 5mm Velocity wetsuit which had collapsed to only 2.5mm after 3 diving trips (~100 dives). The Reactive wetsuit is well constructed and very flexible. I had to increase the size of the Reactive suit, as it was smaller than the BARE Velocity suit of the same size. Tremendous customer service by Dive Catalog to exchange the wetsuit for proper size. I hope the Reactive suit does not crush so quickly like my other wetsuits (BARE, Henderson, Pinnacle). Hoping that the new technology in this suit will keep me warm below the thermocline.

Perfectly Built

Best of the many many diver hangers in my life. Easily supports my steel-plated BCD, while still donned with all of my accessories. No cracks, bends, or dents. Has even supported my BCD w/ a steel 100 tank attached (not recommended, for safety purposes, though).

Will continue to use this hanger for the long-term. No brainer.

Go-to Dive Hanger

This is a must-have for every diver. It's the quintessential hanger for all dive gear in one small package.

DiveCatalog's "Quick Dry Multi Accessory Dive Gear Hanger for Boots, Gloves, Hood" is set at a great price for a great product. Versatile enough that I've purchased extra hangers to organize my BMX racing gear.

Must-have for divers and anyone looking to organize their adventurous outdoor activities equipment.

Solid Hanger w/ Tons of Options

Does it's job and then some. The added accessory arms gives you options for a multitude of storage solutions. Solid build, solid pricing, must have for owns of dive gear.

New to this hanger...Now I'm a believer

Used tons of dive hangers, but never an upside down hanger. Game-changer for me. Will now add more of these in the near-future.

With it's swivel head design, it can cram itself into my tight dive locker, while still donning a ton of gear.

DiveCatalog's "Upside Down Drysuit Hanger w/ Regulator and Accessory Hooks" is a great product with solid construction at an affordable price. All of that with Dive Catalog's customer support/satisfaction guarantee.

Brand	Waterproof
Product Type	Drysuits - Men Full
Model Name	Warmtech 300g HD Undersuit
Size Range	XS, S, M, ML, L, XL, 2XL, 3XL
MPN	WP-WARMTECHD-3XL
SKU Prefix	WP-WARMTECHD