Palm have come up with a scorcher of a one-piece fleece suit ideal for wearing under a dry suit. The torso conforming panels are flatlock stitched to increase comfort and a full length, offset two way zipper makes for easy access. Pontetorto is a super soft natural feeling fabric with inner hydrophobic polyproylene 'fleece' to trap warm air while staying dry, and a smooth outer polyester material highly resistant to snagging or pulling. In addition the waffle like grid structures offer a broad range of functional advantages such as reduced weight, reduced pack size, and better ventilation for perspiration transport than a basic fleece. Use of Spandex in the material helps make it very stretchy and is it treated with Polygiene to reduce the build up of bacteria and nasty smells. Pontetorto has been Bluesign certified. Pontetorto Technostretch Fleece is 65% Polyester, 25% Polyproylene and 10% Spandex Thermal layering, ideal for wearing under immersion suits.