Alpinestars Tech 3 Features: Reinforced leather plate runs along rear of the boot. Extended inside and outside plate guards the side and toe-box area of the boot. Calf plate designed for maximum grip, support and side contact. Patented "ankle brace" with shock absorbing ankle padding. Internal plastic reinforcement on the inner side of the boot is covered by thick stamped suede for increased grip and heat resistance. Instep flex-zone stitched for maximum support. Action leather upper. Alpinestars' exclusive high-grip rubber double density compound outsole with a contoured tempered steel shank over injected inside the assembly insole. Four buckles with memory featuring a quick release/locking system. High impact resistant buckles made from injected techno-polymer. Top of the boot is sealed with a Velcro® strap connected to elastic stretch PVC. Poly fabric lining coupled with multi-density EVA. Removable anatomic foot bed . Extended gaiter helps prevent water entry.

Men's Shoe Sizes
UK	4½	5	5½	6	6½	7	7½	8	8½	9	9½	10	10½	11	11½	12	13	14	15
US	5.5	6	6½	7	7½	8	8½	9	9½	10	10½	11	11½	12	12½	13	14	15	16
EU	37½	38	38½	39	40	40½	41	42	42½	43	44	44½	45	46	46½	47	48½	49½	51