Altai Men's Boots 2027

Nidecker’s Altai Men 2027 boots are the centerpiece of the collection—high-end, versatile, and designed to shred any terrain. Dual BOA® H5, Asym 3F asymmetrical upper, and Ascent 2.0 outsole for a surgical fit and total control on-piste or between the trees.

Performance and construction

• Dual BOA® H5 Coiler™ closure: two independent dials to separately adjust the upper and lower zones—precise micro-adjustability in both directions for a perfect fit in seconds.
• Asym 3F asymmetrical upper (co-developed with BOA®): lace guides positioned on the flat zones of the forefoot for uniform closure, fewer pressure points, and increased medial arch support.
• External Heel Lock: integrated wings on both sides of the ankle tightened by the tongue's BOA® dial to eliminate heel lift.
• Ascent 2.0 outsole: improved Transition Zone™, stiffer heel rubber, and Supermatic® compatibility, with enhanced grip on ice and rock.
• 3/5 flex (mid-stiff): responsive and controlled, perfect for big turns on-piste and freeride sessions.
• 3D molded asymmetrical tongue: more pronounced curve on the medial side to conform to the natural shape of the forefoot, with fewer pressure points and balanced comfort.
• 3D molded toe box: streamlined design that minimizes layers and seams around the forefoot for better waterproofing, durability, and ease of entry into the binding.
• Articulated flex zone: upper cuff connected asymmetrically for natural ankle flex with excellent support.

Fit and comfort

• Heat-moldable Silver liner: Custom Flex Zone at the toes, 8mm PE foam, additional PU reinforcement, and hook-and-loop strips on the tongue for easy entry and a perfect hold.
• Shell Harness liner closure: internal laces that tighten the harness integrated into the shell for a progressive and precise hold.
• 3D Pro insole: 3D-molded EVA + TPE for superior comfort with lasting rebound, breathable mesh lining for warmth and grip.