Sharkskin
Sharkskin Chillproof Long Sleeve Full Zip (Women's)
Getting a snug thermal top on and off with cold hands is a chore, and the women's Sharkskin Chillproof Long Sleeve Full Zip makes it easy with a front zipper that opens all the way, even when the top is wet. Divers wear it as an undergarment beneath a wetsuit or drysuit, and snorkelers, paddlers and sailors wear it alone as a thermal layer.
What Makes Chillproof Different from Neoprene
Chillproof is a windproof, water-resistant fabric made in three layers, and Sharkskin rates its warmth at the level of a 2.5 to 3mm neoprene wetsuit. You get that warmth without neoprene's bulk or buoyancy, so it layers under a wetsuit without adding lead to your belt.
- Fleece interior made from hollow fibers that hold warmth and wick moisture
- Outer Nylon/Spandex blend that resists abrasion
- Breathable windproof membrane that lets excess heat escape
- Odor and itch resistance for long wear
- UPF 50+ sun protection
It keeps you cool when it is hot and warm when it is cold, so it is comfortable on a sunny deck with the zipper open.
Women's Fit and Colors
Sized US0 to US16 on a women's pattern, the full zip comes in all Black or in Black Blue with blue side panels. Thumb loops anchor the sleeves while you pull on a wetsuit, and the high collar adds warmth at the neck.
Frequently Asked Questions
Is the Sharkskin Chillproof Full Zip good for snorkeling?
Yes. Chillproof is made for scuba diving and snorkeling, and this top adds warmth plus UPF 50+ sun protection for long sessions at the surface.
Will I need more weight wearing it under a wetsuit?
No. Chillproof is neutrally buoyant, so you should not need extra weight when you dive in it.
Does the women's full zip come in colors other than black?
Yes. Along with all Black, there is a Black Blue option with blue side panels.






