Based on Blackhawk's High Performance Fighting Uniform’s success and the evolving needs of customers, they have modified the original design to create the new HPFU V. 2 with I. T. S. (Integrated Tourniquet System). Blackhawk 's High Performance Fighting Uniform (HPFU) is a revolutionary approach to the combat uniform, featuring a lean, athletic cut with articulated knees and elbows for increased performance, mobility and reduced bulk. Constructed with no-melt, no-drip materials, the HPFU uniform integrates eight life-saving tourniquets into the arms and legs of each garment and meets U. S. Army Institute of Surgical Research tourniquet requirements (USAISR). Features Solid colors & Desert Digital: 70% cotton / 30% nylon ripstop | Multicam pattern: 50% nylon / 50% cotton ripstopSleeve Features: Two tourniquets built into upper arms (one per sleeve) | Raglan-style sleeves provide full range of motion | Snug, tapered cuffs with wrist adjustment | Zippered mock neck allows added ventilation | Horizontal Velcro loop on flap of upper pocketTorso Features: Modern fit | Comfortable cotton/modacrylic/spandex blend | Superior breathability and moisture-wicking comfort especially for wear under plated armor | Antimicrobial treatment resists odors