ALPINESTARS TECH 3 BOOTS DK GREY/LT GREY/BLK SZ 8 - 482-47408Upper construction is made from lightweight microfiber material for flexibility, durability and abrasion resistance. Light microfiber front and rear bellow inserts offer improved comfort and flexibility in key area. Toe box is constructed from synthetic material for abrasion performance. Extended PU synthetic gaiter helps seal out excessive water and dirt entry. Contoured TPU calf protector plate, TPU higher medial protector, TPU outer lateral ankle