Blue Seventy Men's TX2000 Tri Singlet Cold Black Technology: Coldblack finish, reflects infrared heat rays significantly reducing heat absorption, perspiration and improving performance. Lab testing shows, that coldblack treated dark colors reduce core temperatures more than non-treated light colors. UVX Fabric: Our UVX fabric features a 210gm weight for more comfort and durability, while the calendered finish reduces water absorption and fabric density. UVX fabrics unique structure enhances UV protection. Rear pockets: NEW triple pocket orientation. Extra space plus anatomically designed lateral pockets for a easy reach while on the bike. Reflective tape-trim for security and visibility. Compression: Graduated compression for fit, circulation and muscle performance.