Size/Fit Summary: Fits slightly smaller. If you are in-between sizes or want to wear a thick sock, it is recommended to size up.Extreme cold weather calls for the Intrepid Short Snow Boot. Handcrafted with a recycled nylon upper, recycled fleece lining and an innovative Ortholite™ footbed, tread through frosty excursions with comfort and support. An elasticated drawstring and a toggle along the topline retain warmth, meaning these black boots can be worn in temperatures as low as -20°C (-4°F).Certified veganWaterproofHandcrafted using lightweight rubber100% Recycled upper, lining and insoleInsulating fleece liningDrawstring topline to retain warmthOrtholite™ footbedKick Spur for ease of removalHydroguard waterproof internal membrane to keep your foot dryCan be worn in temperatures as low as -20°CProduct code: MFS9135WWU