Sharkskin Chillproof Long Sleeve Full Zip (Men's)

The men's Sharkskin Chillproof Long Sleeve Full Zip is a thermal top that goes under a wetsuit or drysuit for diving, and it also works on its own as thermal protection equivalent to 3mm of neoprene. The full-length front zipper makes it simple to get on and off, even when the top is wet, and thumb loops keep the sleeves in place while you pull a wetsuit over it.

Using the Full Zip on Dive Days

Zip it all the way up for warmth and wind protection on the ride out, then open it when the sun is shining or you are working hard. The high collar adds insulation around your neck in cooler conditions.

Chillproof is a windproof, water-resistant three-layer fabric with warmth comparable to a 2.5 to 3mm neoprene wetsuit, but without neoprene's bulk or buoyancy.

• Thumb loops that help pull a wetsuit over the top
• Neutrally buoyant, so no extra weight is needed for diving
• Hollow fiber fleece lining that traps warmth and wicks sweat
• Saltwater-resistant seams and a water-repellent outer finish
• UPF 50+ sun protection

Men's Fit and Colors

Men's sizes run SML through 5XL. Choose all Black, or Black Blue, which adds blue side panels. 4-way stretch gives you full movement through the shoulders for swimming and paddling.

Frequently Asked Questions

Can I wear the Sharkskin Chillproof Full Zip under a drysuit?

Yes. Sharkskin designed it as a drysuit or wetsuit undergarment, and it also works as stand-alone thermal protection.

How warm is the Chillproof Long Sleeve Full Zip?

Sharkskin rates Chillproof as equivalent to a 2.5 to 3mm neoprene wetsuit, so it offers solid warmth without the bulk of neoprene.

What are the thumb loops for on the full zip top?

They hold the sleeves in place so they do not ride up when you pull a wetsuit on over the top.