Our Thinsulate Lineman Pac is the boot of choice for lineman working in mild weather conditions. This slimmer and lighter alternative to felt pacs, comes with our dual steel shanks for climbing comfort and support. This boot is unmatched by any other lineman boot of its kind. Our 100% handmade waterproof bottom has polyester and polyamid incorporated into the pure natural rubber, which prolongs the life of the boot. If you're a lineman who works in slushy, cool conditions, this boot was made for you.