{"product_id":"carolina-mens-bruno-hi-8-comp-toe-600g-work-boot-brown-ca8521","title":"Carolina Men's Bruno Hi 8\" Comp Toe 600G Work Boot - Brown - CA8521","description":"\u003ch3\u003e\u003cstrong\u003eMen's 8” Waterproof 600G Insulated Broad Composite Toe Work Boot\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eA classic looking work boot that is tough and waterproof. It's incredibly reliable, making it the perfect choice to get some work done.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features of the Carolina CA8521\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eComposite Safety Toe Cap\u003c\/strong\u003e — A non-metallic broad toe meeting ASTM F2413 for impact (I\/75) and compression (C\/75), with reduced cold transfer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e600g Thinsulate™ Insulation\u003c\/strong\u003e — Microfibers that trap dead air without absorbing water (Thinsulate™ is a 3M trademark).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGaucho Crazy Horse Leather Upper\u003c\/strong\u003e — Rugged, rich full-grain leather.\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\u003eRemovable AG7™ Polyurethane Footbed \u0026amp; Pillow Cushion™ Insole\u003c\/strong\u003e — Enhanced arch support over a memory-foam layer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEVA Midsole\u003c\/strong\u003e — Lightweight cushioning underfoot.\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; Slip-Resisting Rubber Outsole\u003c\/strong\u003e — A bonded sole that keeps the boot light and flexible.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow Much Insulation Do You Need?\u003c\/h3\u003e\n\u003cp\u003eInsulation is rated by gram weight — how much Thinsulate™ is packed into the boot. 200g suits cool mornings and active work. 400g is a true winter weight for moving outdoors. \u003cstrong\u003e600g, as here, is for standing still in the cold\u003c\/strong\u003e: equipment operators, gatehouse and yard work, ice and refrigeration, deep-winter outdoor shifts where your own movement isn't generating much heat.\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 how much Thinsulate™ sits behind it. A composite cap doesn't. On a 600g boot, that's the difference between warm feet and cold toes in a warm boot.\u003c\/p\u003e\n\n\u003ch3\u003eWarm and Dry Are the Same Problem\u003c\/h3\u003e\n\u003cp\u003eInsulation fails when it's wet, because water carries heat away far faster than air. Thinsulate™ doesn't absorb water, and the sealed SCUBALINER™ keeps external moisture out entirely.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Choose the CA8521?\u003c\/h2\u003e\n\u003cp\u003eSerious winter warmth, waterproof, EH rated, with a composite toe and a composite shank — no steel to pull the cold in.\u003c\/p\u003e\n\n\u003ch3\u003eSimilar Styles to Consider\u003c\/h3\u003e\n\u003cp\u003eWant aerogel warmth without the bulk? The Freezer \u003ca href=\"https:\/\/www.overlookboots.com\/products\/carolina-mens-freezer-8-comp-toe-wp-insulated-work-boot-brown-ca4590\"\u003eCA4590\u003c\/a\u003e is rated to −20°F. Prefer a 6\" insulated Bruno? The \u003ca href=\"https:\/\/www.overlookboots.com\/products\/carolina-mens-bruno-lo-6-comp-toe-wp-insulated-work-boot-brown-ca5521\"\u003eCA5521\u003c\/a\u003e. 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\u003eHow warm is 600 grams of insulation?\u003c\/h3\u003e\n\u003cp\u003eIt's built for sustained cold with limited movement — standing, operating equipment, working in refrigeration. For active outdoor work below freezing, 400g breathes better and you'll overheat less. For cool mornings, 200g is plenty.\u003c\/p\u003e\n\n\u003ch3\u003eCan I wear these in mild weather?\u003c\/h3\u003e\n\u003cp\u003eYou can, but you won't enjoy it. 600g of insulation has nowhere to send your foot's heat once the temperature climbs. If you need one boot across seasons, an uninsulated waterproof model is the better buy.\u003c\/p\u003e\n\n\u003ch3\u003eWhy a composite toe on an insulated boot?\u003c\/h3\u003e\n\u003cp\u003eSteel conducts heat away from your toes, so a steel-toe insulated boot goes cold at the cap first. A composite cap doesn't — which is exactly what you want behind 600g of Thinsulate™.\u003c\/p\u003e\n\n\u003ch3\u003eWhat does the broad toe change?\u003c\/h3\u003e\n\u003cp\u003eIt widens the toe box across the forefoot without going up a full width — useful when you're wearing heavy winter socks inside an insulated boot.\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":53478325354769,"sku":"726363516926","price":153.99,"currency_code":"USD","in_stock":false},{"title":"8 \/ Wide \/ Brown","offer_id":53478325387537,"sku":"726363516810","price":153.99,"currency_code":"USD","in_stock":true},{"title":"8.5 \/ Medium \/ Brown","offer_id":53478325420305,"sku":"726363516933","price":153.99,"currency_code":"USD","in_stock":true},{"title":"8.5 \/ Wide \/ Brown","offer_id":53478325453073,"sku":"726363516827","price":153.99,"currency_code":"USD","in_stock":false},{"title":"9 \/ Medium \/ Brown","offer_id":53478325485841,"sku":"726363516940","price":153.99,"currency_code":"USD","in_stock":false},{"title":"9 \/ Wide \/ Brown","offer_id":53478325518609,"sku":"726363516834","price":153.99,"currency_code":"USD","in_stock":false},{"title":"9.5 \/ Medium \/ Brown","offer_id":53478325551377,"sku":"726363516957","price":153.99,"currency_code":"USD","in_stock":false},{"title":"9.5 \/ Wide \/ Brown","offer_id":53478325584145,"sku":"726363516841","price":153.99,"currency_code":"USD","in_stock":true},{"title":"10 \/ Medium \/ Brown","offer_id":53478325616913,"sku":"726363516964","price":153.99,"currency_code":"USD","in_stock":false},{"title":"10 \/ Wide \/ Brown","offer_id":53478325649681,"sku":"726363516858","price":153.99,"currency_code":"USD","in_stock":true},{"title":"10.5 \/ Medium \/ Brown","offer_id":53478325682449,"sku":"726363516971","price":153.99,"currency_code":"USD","in_stock":true},{"title":"10.5 \/ Wide \/ Brown","offer_id":53478325715217,"sku":"726363516865","price":153.99,"currency_code":"USD","in_stock":true},{"title":"11 \/ Medium \/ Brown","offer_id":53478325747985,"sku":"726363516988","price":153.99,"currency_code":"USD","in_stock":true},{"title":"11 \/ Wide \/ Brown","offer_id":53478325780753,"sku":"726363516872","price":153.99,"currency_code":"USD","in_stock":true},{"title":"11.5 \/ Medium \/ Brown","offer_id":53478325813521,"sku":"726363516995","price":153.99,"currency_code":"USD","in_stock":true},{"title":"11.5 \/ Wide \/ Brown","offer_id":53478325846289,"sku":"726363516889","price":153.99,"currency_code":"USD","in_stock":true},{"title":"12 \/ Medium \/ Brown","offer_id":53478325879057,"sku":"726363517008","price":153.99,"currency_code":"USD","in_stock":true},{"title":"12 \/ Wide \/ Brown","offer_id":53478325911825,"sku":"726363516896","price":153.99,"currency_code":"USD","in_stock":true},{"title":"13 \/ Medium \/ Brown","offer_id":53478325944593,"sku":"726363517015","price":153.99,"currency_code":"USD","in_stock":true},{"title":"13 \/ Wide \/ Brown","offer_id":53478325977361,"sku":"726363516902","price":153.99,"currency_code":"USD","in_stock":true},{"title":"14 \/ Medium \/ Brown","offer_id":53478326010129,"sku":"726363517022","price":153.99,"currency_code":"USD","in_stock":false},{"title":"14 \/ Wide \/ Brown","offer_id":53478326042897,"sku":"726363516919","price":153.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1107\/6454\/files\/CA8521-500xauto_Profile.png?v=1778174751","url":"https:\/\/www.overlookboots.com\/products\/carolina-mens-bruno-hi-8-comp-toe-600g-work-boot-brown-ca8521","provider":"Overlook Boots","version":"1.0","type":"link"}