SKU 9857013 Stay stylish in comfort no matter the weather in Due North All Purpose Industrial Traction Aid. Industrial quality tungsten carbide spikes provide maximum traction and performance, specially formulated 100% rubber provides maximum flexibility and durability even in extreme cold, "pulse grip" tread pattern provides added traction and grip, geometrically designed webbing, improved shape and molded holes for optional retention strap allows the traction aid to fit a greater variety of footwear (retention strap sold separately). Textile upper, lining, and insole. Lace-up closure. Round-toe silhouette. Traction & slip resistance outsole. Imported. Product measurements were taken using size SM (US Men's Shoe Size 3-7, Women's Shoe Size 4-8), width Medium. Please note that measurements may vary by size. Measurements: Weight: 8.8 oz View Zappos.com Glossary of Terms Due North All Purpose Industrial Traction Aid