45NRTH Wolvhammer BOA Boot

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Starting from the idea of a mountaineering boot, the new Wolvhammer is lighter, more comfortable, and sticks to the ground better. The new design has a synthetic liner that can be taken out and a three-piece bottom assembly that works with both flat and clipless pedals. When winter comes and it gets cold, Wolvhammer will take care of you.

  • Removable synthetic liner boot for quick drying
  • 3-piece proprietary bottom assembly is lighter, warmer offers more walking traction
  • Aerogel insulation blocks cold cleats and allows use of preferred insoles without sacrificing warmth
  • 0 to 25F / -18 to -4C Comfort


FEATURES: Imported

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

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.

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

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

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

SUGGESTED TEMP RANGE: 0°F (-18°C) to 25°F (-4°C) Comfort

SIZES: Mens wide 36 - 50 (no size 49), full sizes only

COLOR: Black

MATERIAL: Upper: Synthetic Leather, Polyester Mesh

Lining: Polyester

Outsole: Rubber

Apparel Sizing Guide

Remove excess layers of clothing and measure comfortably snug to the body, using a cloth measuring tape. If you don’t have one, you can use a string and measure it against a yardstick or standard measuring tape. For best results have a friend help.

CHEST: Measure around the fullest part of your chest, under the armpits.

WAIST: Measure around the smallest part of your waist, near the belly button.

HIP: Measure around the fullest part of your lower body, typically around your butt or upper thighs.

INSEAM: Measure inside your leg starting at the crotch, down your leg to the floor.

SLEEVE: Start at the base of your neck, measure out to the back of your shoulder and down your arm to your wrist.


45NRTH Sizing Guide