Carolina Men's Freezer 8" Comp Toe WP Insulated Work Boot - Brown - CA4590
Lightweight, flexible, and warm without the bulk—step into our Freezer, Men's 8" Composite Toe Insulated Work Boot built for -20°F conditions. This boot features ultra-thin insulation and Sc_Foam™ by Solarcore®, powered by NASA-grade Aerogel for serious heat retention. The composite toe meets ASTM standards, and the flexible 8” design keeps you moving in the coldest conditions. Key Features of the Carolina CA4590 Composite Safety Toe — A non-metallic toe meeting ASTM F2413 for impact (I/75) and compression (C/75), with reduced cold transfer. Solarcore® SC_Foam™ Aerogel Insulation — Rated to −20°F. Ultra-thin, derived from aerospace insulation technology. Dark Brown Barnyard Acid Resistant Leather Upper — Treated against the caustic chemicals found in heavy industry and on farms and ranches. Waterproof SCUBALINER™ — Carolina's sealed proprietary waterproof lining system. Molded Rubber Abrasion Toe — A bumper over the leather where boots wear out first. Molded External Heel Counter — Stiffens the heel against roll on uneven ground. DRI-LEX® Moisture-Wicking Anti-Microbial Mesh Lining — Moves sweat off the foot and resists odor. Removable AG8™ Dual-Density Footbed — An update to the AG7, with enhanced arch support. Non-Metallic Shank — Composite support with no steel in it. Electrical Hazard Rated — Tested to withstand up to 18,000 volts at 60Hz for one minute without leakage. Cement Construction & EVA Midsole — A bonded sole that keeps the boot light and flexible. Aerogrip Oil- & Slip-Resisting Rubber Outsole — Traction on cold, slick surfaces. Aerogel Is Not Gram-Weight Insulation Most insulated boots are rated in grams — 200g, 400g, 600g — which measures how much Thinsulate™ or similar batting is packed into the boot. More grams means more warmth and more bulk, and eventually a boot that fits like a brick. Aerogel works differently. It's among the least thermally conductive solid materials made, and Solarcore's SC_Foam™ delivers a −20°F rating in a layer thin enough
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