{"product_id":"carolina-mens-freezer-8-comp-toe-wp-insulated-work-boot-brown-ca4590","title":"Carolina Men's Freezer 8\" Comp Toe WP Insulated Work Boot - Brown - CA4590","description":"\u003ch3\u003e\u003cstrong\u003eLightweight, flexible, and warm without the bulk—step into our Freezer, Men's 8\" Composite Toe Insulated Work Boot built for -20°F conditions.\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThis 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.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features of the Carolina CA4590\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eComposite Safety Toe\u003c\/strong\u003e — A non-metallic toe meeting ASTM F2413 for impact (I\/75) and compression (C\/75), with reduced cold transfer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSolarcore® SC_Foam™ Aerogel Insulation\u003c\/strong\u003e — Rated to −20°F. Ultra-thin, derived from aerospace insulation technology.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDark Brown Barnyard Acid Resistant Leather Upper\u003c\/strong\u003e — Treated against the caustic chemicals found in heavy industry and on farms and ranches.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWaterproof SCUBALINER™\u003c\/strong\u003e — Carolina's sealed proprietary waterproof lining system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMolded Rubber Abrasion Toe\u003c\/strong\u003e — A bumper over the leather where boots wear out first.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMolded External Heel Counter\u003c\/strong\u003e — Stiffens the heel against roll on uneven ground.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDRI-LEX® Moisture-Wicking Anti-Microbial Mesh Lining\u003c\/strong\u003e — Moves sweat off the foot and resists odor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemovable AG8™ Dual-Density Footbed\u003c\/strong\u003e — An update to the AG7, with enhanced arch support.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNon-Metallic Shank\u003c\/strong\u003e — Composite support with no steel in it.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectrical Hazard Rated\u003c\/strong\u003e — Tested to withstand up to 18,000 volts at 60Hz for one minute without leakage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCement Construction \u0026amp; EVA Midsole\u003c\/strong\u003e — A bonded sole that keeps the boot light and flexible.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAerogrip Oil- \u0026amp; Slip-Resisting Rubber Outsole\u003c\/strong\u003e — Traction on cold, slick surfaces.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAerogel Is Not Gram-Weight Insulation\u003c\/h3\u003e\n\u003cp\u003eMost 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.\u003c\/p\u003e\n\u003cp\u003eAerogel 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 that the boot still flexes and still fits like a boot. If you've avoided insulated footwear because of the bulk, this is the one to look at.\u003c\/p\u003e\n\n\u003ch3\u003eWarmth Without the Sweat\u003c\/h3\u003e\n\u003cp\u003eAn insulated boot fails when your foot sweats and the moisture carries heat away. The DRI-LEX® lining wicks that sweat outward and resists the microbes behind boot odor, while the sealed SCUBALINER™ keeps external water out. Warmth and dryness are the same problem.\u003c\/p\u003e\n\n\u003ch3\u003eWhy the Composite Toe Matters in Cold\u003c\/h3\u003e\n\u003cp\u003eSteel conducts heat away from your toes, so a steel-toe insulated boot goes cold at the cap first no matter what sits behind it. A composite cap doesn't — exactly what you want in a boot rated to −20°F.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Choose the CA4590?\u003c\/h2\u003e\n\u003cp\u003eSerious cold-weather protection without the bulk, on acid-resistant leather, with a composite toe that won't chill your toes.\u003c\/p\u003e\n\n\u003ch3\u003eSimilar Styles to Consider\u003c\/h3\u003e\n\u003cp\u003ePrefer conventional gram-weight insulation? The Dormite \u003ca href=\"https:\/\/www.overlookboots.com\/products\/carolina-mens-dormite-8-comp-toe-ins-wp-work-boot-brown-ca8556\"\u003eCA8556\u003c\/a\u003e carries 600g of Thinsulate™. Don't need insulation at all? The Barrett \u003ca href=\"https:\/\/www.overlookboots.com\/products\/carolina-mens-barrett-8-comp-toe-wp-work-boot-brown-ca5601\"\u003eCA5601\u003c\/a\u003e is uninsulated on the same acid-resistant leather. Browse all \u003ca href=\"https:\/\/www.overlookboots.com\/collections\/composite-toe-boots\"\u003ecomposite toe boots\u003c\/a\u003e at Overlook Boots.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003ch3\u003eWhat does the −20°F rating mean in practice?\u003c\/h3\u003e\n\u003cp\u003eIt's the temperature the insulation system is rated to. Real-world warmth also depends on your own activity, your socks, and how long you stand still — a rating assumes you're generating some heat. Treat it as a guide, not a guarantee.\u003c\/p\u003e\n\n\u003ch3\u003eHow does aerogel compare to 600g Thinsulate™?\u003c\/h3\u003e\n\u003cp\u003eThey're rated differently, so there's no clean conversion. What aerogel buys you is warmth per millimeter: a −20°F rating in a layer thin enough that the boot doesn't feel packed. A 600g boot is warm too, and bulkier.\u003c\/p\u003e\n\n\u003ch3\u003eWhat does barnyard acid resistant mean?\u003c\/h3\u003e\n\u003cp\u003eThe leather is treated to resist degradation from manure, urine, fertilizer, and similar caustic chemicals. It is not the same as chemical-resistant footwear for industrial solvents.\u003c\/p\u003e\n\n\u003ch3\u003eHow does cement construction affect the boot?\u003c\/h3\u003e\n\u003cp\u003eThe outsole is bonded directly to the upper rather than stitched through a welt, which keeps an insulated boot light and lets it flex from the first day, with no break-in underfoot.\u003c\/p\u003e\n\n\u003ch3\u003eDoes the EH rating still apply when the boots are wet?\u003c\/h3\u003e\n\u003cp\u003eTreat it as reduced. EH testing is performed under dry conditions; moisture, damp leather, and worn outsoles all degrade insulation. EH footwear is secondary protection — never a substitute for de-energizing a circuit or using primary PPE.\u003c\/p\u003e","brand":"Carolina","offers":[{"title":"8 \/ Medium \/ Brown","offer_id":53229822181649,"sku":"726363766314","price":173.24,"currency_code":"USD","in_stock":true},{"title":"8 \/ Wide \/ Brown","offer_id":53229822214417,"sku":"726363766208","price":173.24,"currency_code":"USD","in_stock":true},{"title":"8.5 \/ Medium \/ Brown","offer_id":52704142098705,"sku":"726363766321","price":173.24,"currency_code":"USD","in_stock":true},{"title":"8.5 \/ Wide \/ Brown","offer_id":52704142131473,"sku":"726363766215","price":173.24,"currency_code":"USD","in_stock":true},{"title":"9 \/ Medium \/ Brown","offer_id":53229822247185,"sku":"726363766338","price":173.24,"currency_code":"USD","in_stock":true},{"title":"9 \/ Wide \/ Brown","offer_id":53229822279953,"sku":"726363766222","price":173.24,"currency_code":"USD","in_stock":true},{"title":"9.5 \/ Medium \/ Brown","offer_id":52704142229777,"sku":"726363766345","price":173.24,"currency_code":"USD","in_stock":true},{"title":"9.5 \/ Wide \/ Brown","offer_id":52704142262545,"sku":"726363766239","price":173.24,"currency_code":"USD","in_stock":true},{"title":"10 \/ Medium \/ Brown","offer_id":53229822312721,"sku":"726363766352","price":173.24,"currency_code":"USD","in_stock":true},{"title":"10 \/ Wide \/ Brown","offer_id":53229822345489,"sku":"726363766246","price":173.24,"currency_code":"USD","in_stock":true},{"title":"10.5 \/ Medium \/ Brown","offer_id":52704142360849,"sku":"726363768936","price":173.24,"currency_code":"USD","in_stock":true},{"title":"10.5 \/ Wide \/ Brown","offer_id":52781473661201,"sku":"726363766253","price":173.24,"currency_code":"USD","in_stock":true},{"title":"11 \/ Medium \/ Brown","offer_id":53229822378257,"sku":"726363766369","price":173.24,"currency_code":"USD","in_stock":true},{"title":"11 \/ Wide \/ Brown","offer_id":53229822411025,"sku":"726363766260","price":173.24,"currency_code":"USD","in_stock":true},{"title":"11.5 \/ Medium \/ Brown","offer_id":52781473759505,"sku":"726363766376","price":173.24,"currency_code":"USD","in_stock":true},{"title":"11.5 \/ Wide \/ Brown","offer_id":52781473792273,"sku":"726363766277","price":173.24,"currency_code":"USD","in_stock":true},{"title":"12 \/ Medium \/ Brown","offer_id":53229822443793,"sku":"726363766383","price":173.24,"currency_code":"USD","in_stock":true},{"title":"12 \/ Wide \/ Brown","offer_id":53229822476561,"sku":"726363766284","price":173.24,"currency_code":"USD","in_stock":true},{"title":"13 \/ Medium \/ Brown","offer_id":53229822509329,"sku":"726363766390","price":173.24,"currency_code":"USD","in_stock":true},{"title":"13 \/ Wide \/ Brown","offer_id":53229822542097,"sku":"726363766291","price":173.24,"currency_code":"USD","in_stock":true},{"title":"14 \/ Medium \/ Brown","offer_id":53229822574865,"sku":"726363766406","price":173.24,"currency_code":"USD","in_stock":true},{"title":"14 \/ Wide \/ Brown","offer_id":53229822607633,"sku":"726363766307","price":173.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1107\/6454\/files\/CLA-001-CA4590.jpg?v=1761886052","url":"https:\/\/www.overlookboots.com\/products\/carolina-mens-freezer-8-comp-toe-wp-insulated-work-boot-brown-ca4590","provider":"Overlook Boots","version":"1.0","type":"link"}