Insulated Waterproof Work Boots for Winter Work

Documented specification: Carhartt lists this as style CMF8389, an 8-inch boot with a composite safety toe it describes as lightweight, non-metallic, and non-conductive. It uses Storm Defender waterproof, breathable protection and 400g 3M Thinsulate insulation, over a lightweight EVA midsole, Cushion Comfort PU insoles, and a fiberglass shank. The non-marking rubber lug outsole is described as oil and slip resistant and heat resistant up to 300C/572F. Carhartt states it meets ASTM F2413-24 EH and ASTM F3445-24 SR. Medium and wide widths are shown.

Outside evidence: No independent warmth, waterproofing or traction test of this boot was found. Its SR marking comes from ASTM F3445-24, which sets a slip-resistance minimum on quarry tile under dry and wet conditions. That is not an ice result.

Editorial inference: For active winter work that requires a safety toe, this boot carries the most current safety documentation in the set: Carhartt names the 2024 editions of both the toe and EH standard and the slip standard.

Documented specification: Timberland documents the Brown colorway as style TB138022242, an 8-inch soft-toe boot with 400 grams of insulation; the page does not name the insulation type. The upper is waterproof leather with seam-sealed waterproof construction, and the boot uses direct attach construction. Timberland describes the rubber lug outsole as heat-, oil-, slip-, and abrasion-resistant and lists electrical hazard protection and Slip-Resistant (SR) without naming an ASTM standard. It has a contoured shock-diffusion plate, Anti-Fatigue Technology polyurethane footbeds, and OrthoLite insoles. Timberland gives the weight of a men's size 9 as 2.83 lbs without saying whether that is one boot or a pair.

Outside evidence: No independent test of this boot was found. ASTM F2892 is the standard for EH and SR markings on soft-toe footwear, and it provides no toe protection; Timberland's page names no standard, so confirm the marking on the boot. A 2007 CPSC recall of Timberland PRO Direct Attach boots covered four steel-toe models, not this soft-toe model.

Editorial inference: With the same stated insulation amount as the Carhartt and no toe cap, it fits active cold-weather work where the job does not require a safety toe.

Documented specification: KEEN lists style 1024222 in Dark Earth/Black: an 8-inch boot with asymmetrical, non-metallic carbon-fiber safety toes it says are 15% lighter than steel, 600g of KEEN.WARM insulation, and a KEEN.DRY waterproof, breathable membrane. KEEN states the boot meets ASTM F2412-18 and F2413-18 M I/75 C/75 EH and ASTM F1677-96 Mark II non-slip testing. It describes the rubber outsole as heat resistant up to 572F/300C and states the outsole and midsole meet ASTM D471-06 for oil. A 90-degree heel, 5/8 inch high, is described for ladders, scaffolding, and uneven surfaces. KEEN lists a weight of 30.51 oz (865 g) without stating the size.

Outside evidence: No independent test of the insulated 8-inch Dover was found. KEEN's own guidance places 600g at "the coldest temps or jobs with lower activity levels." KEEN cites the 2018 edition of ASTM F2413, while the current edition is F2413-24, and ASTM lists F1677, the Mark II slip method, as withdrawn in 2006 with no replacement.

Editorial inference: For colder days or slower work where the job requires a safety toe. The 90-degree heel is the maker's ladder feature, not a fall-protection claim.

Documented specification: Rocky lists style RKK0284, an 8-inch composite-toe boot in full-grain waterproof leather with Rocky Vapor Pass waterproof technology. The title and specification list state 800 grams of 3M Thinsulate Ultra; the description on the same page says 600 grams of 3M Thinsulate. Rocky states the ASTM F2413 protective toe classification and electrical hazard standard without a version year. The rubber outsole is described as oil- and slip-resistant, over a flexible direct-attached PU midsole, a fiberglass shank, and an EnergyBed LX memory-foam footbed. Rocky lists 1.75 lbs at size 10M without saying whether that is one boot or a pair.

Outside evidence: No independent test of this boot was found. Rocky's insulation guide describes 800G for low to moderate activity in cold weather and gives no temperatures for any insulation weight.

Editorial inference: If the label confirms 800 grams, this is the most insulated leather boot in the set. If yours says 600 grams, compare it with the KEEN instead.

Documented specification: Muck lists the boot as style AVTVA000 in Black and AVTVA900 in Brown. Its name says 16 inches, while the specification list gives a full height of 15 inches. It has an 8mm neoprene bootie, a lining Muck describes as soft, light-weight insulation, and a Vibram Arctic Grip A.T. outsole with XS Trek Evo that Muck describes for wet ice traction. Muck calls it 100% waterproof and states a temperature range of -60F to 30F without explaining how that range is set. Muck names no safety toe and no ASTM marking. Average weight is 3.00 lbs at size 10M.

Outside evidence: GearLab (OutdoorGearLab) published a test of the women's Arctic Ice Tall AGAT on February 14, 2025. With the boot submerged in ice water for 10 minutes, the temperature inside dropped 9.5 degrees Fahrenheit, which GearLab placed in the middle of its lineup, and the boot stayed dry inside after two minutes of marching in a river. GearLab's text describes 5mm neoprene while its spec table says 8mm, so its results describe a women's version that may differ from this men's 8mm boot. Vibram states that Arctic Grip "provides excellent grip and traction on wet ice surfaces" but publishes no test data for the A.T. version. Neither this boot nor the A.T. sole appears in KITE's wet-ice list.

Editorial inference: For wet winter ground where the job does not require a safety toe: slush, standing water, wet snow, and yard or barn chores. It is not documented as chemical-resistant footwear, so the farm guide's limits on manure, wastewater, and pesticide exposure still apply.