NWOT best-selling Baffin women’s Impact boot in black. Purchased when I lived in a much colder climate, but have since moved somewhere warmer and never wore these. Sizing: Women’s size 8. I typically wear 7/7.5 in flats or heels, but I sized up to Size 8 in these boots for more room and have the option to wear thick socks. Baffin website also recommends going one size up. Tested at both the North and South Poles, IMPACT performs flawlessly under the most demanding conditions. IMPACT is appropriate for extended periods of time in extreme cold weather, snow and/or ice-covered environments, where activity level may be low to moderate. Boasting the most comprehensive inner boot system, IMPACT features the highest level of cold comfort in the Baffin range. Upper: Double buckle fastening for added security Nylon locking snow collar to protect from the elements Pull loop at the back for ease of entry Base: Arctic™ Rubber shell to provide lightweight flexibility, cold-resistance and resilience EVA midsole for light-weight insulation and cushioning Polar Rubber® outsole for maximized grip and longevity of boot at cold temperatures Insulation: Removable Comfort-Fit multi-layer inner boot system More info at: https://www.baffin.com/en-us/products/40100048