Back40 Boot

• The waterproof rubber and neoprene upper is zonally molded to provide additional comfort and protection
• Full-length, molded EVA midsole provides unmatched underfoot comfort
• 800g Thinsulate™ insulation offers all-season temperature regulation
• Rubber outsole bolstered by our proprietary SITKA Apex Tread System for maximum traction on any terrain
• Proprietary molded PU Footbed furthers underfoot comfort
• Heel and toe rubber overlays bolster durability where you need it most
• Rubber heel kick pad allows for easy exit
• If between sizes, we recommend sizing up
• Comfort range: -20 °F to 40 °F
• Dimensions: 18” height, 17.6” calf circumference (size 10)
• Weight: 42.5oz per boot (measured in a size 10)
• Imported

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