The North Face Thermoball Traction Women's Black Outdoor Boots Nf0A331Hky41

Hello, yes this product is perfectly fine for outside use. Thermoball Traction Women's Boots are designed to be worn outside in the snow, ice and cold weather of winter. Thanks to its high-grip sole and heated interior, it's perfect for outdoor activities. Regarding the fit, I can say that The North Face models generally have a normal fit. If you normally wear 37.5, I recommend the 37.5 size — this will give you the best fit. If you want a looser fit, you can also consider size 38, but size 37 may be a little tight. It would be helpful to check the size chart on the product page for a definitive decision.

Hello, the pattern of the Thermoball Traction model is standard. I recommend buying size 42 for someone who wears size 42. If you prefer a looser and more comfortable fit, you can also consider size 42.5. You can also review the detailed measurements in the size chart on the product page.