Sharkskin Thermal Flex Long Sleeve (Women's)

For women who get cold on a long snorkel but hate the feel of a neoprene top, the Sharkskin Thermal Flex Long Sleeve is a thin, close fitting option that adds warmth you can actually swim in. New for 2026, it covers your arms and torso with UPF50+ protection and works just as well on the boat as in the water. It comes in Pink/Charcoal and Reef Green.

What Is Inside the Fabric

Thermal Flex uses a Hydrophobic Nanotech Compression fabric combined with Far Infrared (FIR) technology. That pairing lets the top stay warm without adding thickness, so you skip the bulk and buoyancy that come with neoprene. The surface repels water and resists soaking it up, which means less weight and less chill when you climb back on deck after a swim.

It pairs naturally with Thermal Flex pants or jammers if you want matching warmth on your legs.

Women's Fit and Sizing

The women's top is cut in US sizes from US0 to US16, with a shape tailored to a women's frame. The compression knit sits close to the skin without restricting your stroke. If you are between sizes and plan to use it mostly for snorkeling, the snugger size will hold warmth better.

Frequently Asked Questions

Can I wear the Sharkskin Thermal Flex Long Sleeve for snorkeling?

Yes. It is designed to keep you comfortable longer in, on and under the water, which makes it a good warm layer for snorkeling in cooler water.

Is it a wetsuit top?

No. It is not neoprene. It uses FIR technology and a compression fabric to provide warmth without neoprene's bulk or buoyancy.

Does it protect from the sun?

Yes, the fabric is rated UPF50+.