The 1.5MM Performance is a handy back zip Natural Rubber performance jacket in super stretch fabric for those slightly overcast" warm-water days. WARMTH & STRETCH 100% Natural Stretch  FSC certified Natural Rubber- the lightest weight" warmest & stretchiest  100% neoprene free bio based foam available.Dope Dyed Fabric- Softer" eco-friendly" anti-fade stretch jersey laminated with AquaA eco-friendly water-based lamination is completely solvent free.   Made by Bluesign approved mills. FEATURES Flat lock stitched" Short Back Zip" Side toggle and Boardshort compatible secure cord.