Closure

Single-zone BOA M3 mid-power reel and lacing system

Insulation

200g Primaloft quilted inside removable liner boot; 2mm aerogel blanket under the foot to thermally block metal cleats

Lasts

XX-wide last with tall toe box for extra insulation on top of the foot

Midsole

3/4 length fiberglass-injected nylon nested inside EVA foam for reduced weight, added comfort and increased traction.

Outsole

45NRTH real rubber outsole with anti-slip microglass rubber lugs, flat pedal and 2-bolt compatible. Comes with removable cleat plate for flat pedal use. A note on flat pedals: we recommend using 45NRTH's winter specific Helva and Heiruspecs pedals, and not aggressive downhill pedals with sharp metal pins.

Suggested Temp Range

0 (-18 C) to 25 F (-3 C)

Upper

Coated microfiber with ballistic nylon underlays and ®Techtuff toe outside of a waterproof-breathable membrane.