30MATERIALS:
- UPPER: Waterproof nylon upper. Seam-sealed waterproof construction. Laces are not waterproof.
- INSULATION: Removable 9 mm washable recycled felt inner boot.
- MIDSOLE: 2.5 mm bonded felt frost plug.
- OUTSOLE: Handcrafted waterproof vulcanized rubber shell with herringbone outsole.
