men axis os 5 4 blackIntroducing the Xcel Axis OS 5 4. The Axis X has been upgraded with the new Thermo Lite material, which provides more warmth and improved comfort. The outer seams have been reinforced with "S" Seal, a polyurethane protection that prevents the seams from rubbing and thus significantly increases durability. The inner seams have been reinforced with our FusionX tape. Since we work with large neoprene surfaces, we guarantee fewer seams and more