Fuseflex Stitchless Seam Technology 5.5/5/4/3 Construction Fiber-Lite Neoprene Bio-Fleece Thermal Neoprene Chest Zip GBS (Glued & Blind Stitched) Seams Bead Lock Seal Glideskin Neck Seal Flexmax Seal External Key Pocket Behind Knee Embossing FUSEFLEX Stitchless Seam Technology - The stitchless seam is achieved by pressure bonding a very thin layer of neoprene together. This technique dramatically increases flexibility through the seam and also secures a non leak durable seam. Bio fleece lining – The new lining inside the fuseflex makes the wetsuit 20% more flexible than conventional thermal fleeces. Made with recycles bamboo and charcoal the Bio-fleece absorbs less water, dries quicker, weighs less and has the ability to neutralise bacteria build up. Fiber-Lite Neoprene – Features closed cell neoprene which has masses of microscopic air to give the neoprene and the wetsuit maximum insulation. Plio tech – The panels on the Fuze Flex have neoprene which has notched air pockets to retain your body heat through insulation. This Plio tech stuff doubled up with the Fiber-Lite neoprene really does make this one of the warmest wetsuits we sell. More Mens Winter Wetsuits