ALPINESTARS Stella SMX-6 V3 Vented Boots

Dedicated female fit for optimal riding comfort, the Stella SMX-6 V3 Vented Boots combine race-derived technology with advanced protection for track and street performance. The upper is precision-engineered to conform to the anatomical contours of the foot, delivering flexibility, improved walking comfort, and breathability. Constructed from advanced microfiber with dedicated laser-perforated areas, the lightweight upper provides high-performance abrasion resistance, durability, flexibility, and ventilation.

Front and back flexion zones combine textile over-injected on 3D mesh with soft Thermoplastic Polyurethane (TPU) for enhanced impact abrasion protection and natural forwards and backwards foot movement. An evolution of Alpinestars’ unique ankle brace protection system provides biomechanical support between the lateral top calf, shin, and ankle, promoting superior ankle articulation while protecting the Achilles and ankle. TPU lateral ankle brace protection, a race-derived TPU shin plate protector, internal toe box protection, and a TPU shifter zone provide comprehensive impact and abrasion resistance.

The Alpinestars Lace-Lock System uses advanced polymer resin for quick, precise, and secure closure. A medial side entry system features an elastic-mounted zipper with wide hook and loop closure, while the ergonomic elastic gaiter provides a precise fit in any condition. Air vents on the heel counter and shin plate, breathable mesh inserts on the back, and perforated padding throughout the boot—including the front and rear bellow, collar, and ankle—improve airflow and reduce fatigue.

An ergonomic last streamlines the forefoot for greater control and precision on the bike’s controls. The streamlined contact surface enhances rider comfort, while a dedicated pull flap facilitates hook and loop closure. The removable dual-compound anatomical footbed is made from EVA with Lycra on top, and the internal insole features integrated shank reinforcement for arch support and foot protection. A lightweight rubber compound sole delivers excellent grip on the pedal box, while the compact design allows the boots to fit easily under riding pants.