Cutting edge technology & materials for this all-around biking trousers. The knee protector position can be adjusted depending on riding position & can also be fitted for off bike time. This thanks to a system of zippers aptly placed above & below the knee area. External shell is: Sebonner cotton, short fiber Polyamide & Polyurethane with waterproof treatment & Cordura-like wear resistance. Spidi HI-FIT also features the exclusive Pant Arrangement: a small strap for fastening boots to the bottom of trousers in order to keep them firmly in position. Features High visibility reflex areas Teflon coated for water-repellent features Cordura/cotton mix Stretch material inserts to improve fitting Adjustable drawstring tightening for optimal fastening Lumbar adjust system Multi-layered zones Smart straps for boots attach Adjustable knee protectors Pants with fixed lining Multitech protectors at hips/knees