The Hoffman Lineman Felt Pac is the best climbing pac boot available. Constructed with a industrial grade rubber bottoms, our pacs resist cracking and premature rebuilds associated with other companies boots. This style of boot has been hand-crafted for over 30 years. Within this time period, Hoffman's has perfected this boot to meet your every climbing need. If you need a warm, durable, climbing boot that will not let you down, try a pair today. 7.5 oz. leather upper Dual Shanks for climbing Claw-Lug Soles for superior traction Brass hooks and eyelets 9mm Felt liners for warmth This boot is the best choice, when you need the warmest boot for winter climbing conditions. Leather uppers made in Kellogg, Idaho. Imported Industrial Grade Rubber bottoms. FITTING TIPS: Hoffman felt pacs run true to size. Whole size: order the same. Half size: order down (i.e.: 9 1/2 would order 9) unless you have a wide foot.