Tapered sleeve, elastic both ends, sonic welded seams, white, 300/case. - To maximize barrier protection, SmartWear protective sleeves use sonic welded seams down the entire length for strong, no-fail construction. This construction technique ensures the seam effectively matches the barrier properties of the material. The unique, ultra low particle count SmartWear fabric protects wearers from chemicals, particles and biologicals while keeping them cool and comfortable. The material dissipates heat and transfers vapor at a microscopic level to help keep the wearer cool and comfortable all day. SmartWear material is strong yet lightweight for durability and comfortable working conditions. For even greater durability and safety, the material stretches and rebounds during activity. The tapered sleeve features elastic at both ends to help lock out fluids and particulates yet maintain a comfortable fit. Construction Details: Tapered, elastic both ends, sonic welded seams.