With 200g of PrimaLoft® Bio™ insulation, Vibram Megagrip to keep you planted on cold, wet ground, and waterproof full-grain leather, the 7" Big Sky II Mid provides the support and warmth you need. Featuring stretch panels and pull loops for easy entry.

Technical Specifications
Width

Standard Width - Men’s standard width is C in the heel and D in the forefoot (according to Brannock Device®). Patterns and materials in a given model may influence fit. We always recommend trying our footwear on to ensure the best possible fit.
Volume

Standard — Medium-High volume feet tend to be wider with higher arches and insteps.
Upper Material

Waterproof full-grain leather
200g PrimaLoft® BIO™ insulation
B-DRY Waterproof membrane
Stretch gore panels
Molded rubber heel kick
Weight

24.8 oz./608 grams