Sharkskin Chillproof Short Sleeve Chest Zip (Men's)

The men's Sharkskin Chillproof Short Sleeve Chest Zip is a warm core layer with a zipper you can adjust as conditions change. Zip it all the way up when the wind picks up on the boat, then open it partway when the sun comes out or you start working harder. Divers can wear it under a wetsuit for extra warmth, and it is equally at home on a jet ski or any paddle craft.

Using the Chest Zip On and Off the Water

The short sleeves free up your arms while still enclosing the armpit area, which Sharkskin points out adds good warmth. A high collar keeps your neck warm when the zipper is up.

Chillproof itself is a three-layer composite that Sharkskin rates at the thermal properties of a 2.5 to 3mm neoprene wetsuit.

• A 100% windproof membrane that breathes (10K+) to prevent overheating
• Hollow fiber fleece next to the skin that wicks moisture
• Neutral buoyancy, with no need for added weight
• UPF50+ sun protection

Men's Fit and Sizing

Men's sizes run SML through 5XL. Four-way stretch keeps the fit close enough to layer under a wetsuit while staying easy to pull on and off.

Frequently Asked Questions

What is the chest zip on the Sharkskin Chillproof top for?

The chest zip lets you regulate temperature. Zip it up fully for warmth and wind protection, or zip it partway down when the sun comes out or your effort level rises.

Can I wear the Chillproof Chest Zip under a wetsuit?

Yes, Chillproof can be worn under a wetsuit for extra warmth and wind protection, and the short sleeves keep extra fabric off your arms.

Is the Chillproof Chest Zip good for jet skiing?

Yes, Sharkskin designed it for power watersports like jet skiing as well as paddle sports, where a half-zip gives you security along with a way to vent.