Sharkskin Womens Titanium 2 Chillproof Full Zip Vest

Quick answer: The Sharkskin Titanium 2 Chillproof Full Zip Vest is a women's core-warmth layer built from Sharkskin's three-layer Chillproof fabric, embedded with titanium nanoparticles that Sharkskin says capture and hold significantly more body heat. It comes in US sizes 00 through 16, which Sharkskin maps to EU XXS through 4XL.

Why bigger divers look at it

A vest warms your core without adding bulk at the shoulders and arms, and the full zip makes it easy to get on and off. Sharkskin publishes a full chart for every size: at US 16 (EU 4XL), that's 236 to 258 pounds, a 52 to 54.3 inch bust and a 43.3 to 45.7 inch waist. Titanium 2 is more flexible than the original, with body-mapping technology for a better fit.

How the three layers work

Hollow-yarn fleece inside holds and warms water against your skin. A one-way middle membrane blocks wind and water on the surface while wicking moisture away. The outer layer is an abrasion-resistant nylon and spandex blend with four-way stretch and a water-repellent finish.

What you get

• Titanium 2 Chillproof three-layer fabric
• Sleeveless design with full front zipper
• Windproof, wicking one-way membrane
• Abrasion-resistant, water-repellent four-way stretch outer
• Body-mapped fit

Options

• Sizes: US 00, 02, 04, 06, 08, 10, 12, 14, 16 (AU 6-22, EU XXS-4XL)

Before you buy

Compare your bust and waist with Sharkskin's chart. Under a wetsuit, Sharkskin says it should fit firmly so it doesn't bunch. More options: Extended-Size Wetsuits, Drysuits & Dive Apparel (XXL and Up).