Women's Intrepid Insulated Tall Snow Boots - 8 Women's Intrepid Insulated Tall Snow Boots 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 Tall Snow Boot. Handcrafted with a recycled nylon upper, recycled fleece lining and an innovative Ortholite® footbed, they'll allow you to tread through frosty environments with reliable comfort and support. Finished with an elasticated drawstring and toggle along the topline which retains warmth, these women's white snow boots can be worn in temperatures as low as -20°C (-4°F).