The Alpinestars SMX S motorcycle boots are CE-certified and offer a lightweight yet highly durable microfibre construction. An ergonomic new forefoot streamlining enables greater precision on the bike controls and fit and comfort. The protective properties of the SMX S boot are outstanding with ergonomically optimised TPU shin plates, lateral TPR-injected ankle support, TPU double-density ankle protectors layered under the upper in both lateral and medial side for excellent all-round levels of protection, integrated, replaceable bi-injected TPU slider, gear change pad made from TPU and internal toe box protection. A medial side opening/closure system features an elastic-mounted zip with wide Velcro closure for flexibility and a secure fit. The aperture opening is large to promote easier entry/exit. A new dual compound removable anatomic footbed includes EVA and Lycra for performance, comfort, and support. Alpinestars' new and exclusive compound rubber sole promotes improved feel, grip, water dispersion, and durability.