Sharkskin Chillproof Long Sleeve Chest Zip Top (Men's)

The men's Sharkskin Chillproof Long Sleeve Chest Zip Top is an adjustable thermal layer you can wear under a wetsuit on cooler dives or on its own when you are out on the water. A half-length zip lets you close it up for full warmth or open it partway when the sun comes out or you start working hard. Sharkskin designed this style with paddle sports and jet skiing in mind.

Chillproof Under a Wetsuit or on Its Own

Chillproof is a windchill-proof composite with three layers, and Sharkskin compares its warmth to a 2.5 to 3mm neoprene wetsuit. Under a wetsuit it adds warmth and wind protection for diving and snorkeling. By itself, it serves as thermal wear on a kayak or boat.

• High collar that keeps your neck warm
• Long sleeves for warmth and full sun coverage, rated UPF50+
• Windproof membrane that breathes at 10K+, so you avoid overheating with the zip closed
• Hollow fiber fleece next to the skin that wicks moisture
• Neutrally buoyant, so you need no extra weight when diving

Men's Sizing

Men's sizes run SML through 5XL, in Black. 4-way stretch keeps the top from restricting your arms and makes it easy to get on and off. If you plan to wear it under a wetsuit, a close fit layers more smoothly.

Frequently Asked Questions

Can I scuba dive in the Sharkskin Chillproof Chest Zip Top?

Yes. Chillproof can be worn under a wetsuit for extra warmth and wind protection, and it is neutrally buoyant, so you should not need extra weight.

Why choose a chest zip top over a pullover?

The half zip lets you vent. Zip it up for complete warmth, or open it partway when the sun comes out or your effort level climbs.

Does the Chillproof Chest Zip Top block UV?

Yes. The fabric is rated UPF50+, and the long sleeves give you full sun protection on your arms.