The women's Sparrow, by Ranger, is a warm pac boot appropriate for wear in winter. This 10-inch lace up boot has a 3/4-inch removable polymeric foam liner and a 200G Thermolote insole for long-lasting warmth and comfort. A TPR shell covers the foot of the boot and is waterproof up to the stitching affixing the upper. Suede leather, in combination with nylon and a faux fur forms the upper of this lace-up, supplying style and an adjustable fit. WATERPROOF: Waterproof to the stitch line of TPR shell. COMFORT: 200 grams Thermolite insole provides long-lasting warmth and comfort. EASY ON/OFF: Fast-pull, webbed lacing system gets boots on and off easily. STYLE: Chl-suede leather and nylon upper, with faux fur collar. SUPPORT: Cushioned EVA midsole and 3/4" removable polymeric foam liner. 200 grams Thermolite® insole provides long-lasting warmth and comfort Comfort rated to -50° F Cushioned EVA midsole and 3/4" removable polymeric foam liner EVA Midsole for all day comfort Fast-pull, webbed lacing system gets boots on and off easily Waterproof to the stitch line of TPR shell