Altama Apex SBM TruFit System Tactical Boots - Mens Coyote 11 US. The Apex SBM is built in multiple layers of Gore-Tex protection. The Gore-Tex Extended Comfort System fully lines the boot in highly breathable ultra thin complete waterproof protection while the brand new material Thermium preserves heat in colder environments and releases heat and sweat in warmer environments. Specifications for Altama Apex SBM TruFit System Tactical Boots - Men's: Manufacturer: Altama Gender: Male Age Group: Adults Boot Style: Tactical Boot Apparel Fit: Regular Color: Coyote Toe Type: Thermoplastic Toe Activity: Tactical Footwear Closure: Laces Padding: Padded Collar Weight: 28.2 oz Footwear Upper Fabric/Material: Full-Grain Cowhide Leather Textile Features of Altama Apex SBM TruFit System Tactical Boots - Men's Fleshout perforated cowhide leather and textile upper for durability and breathability Integrated textile loop lacing system Gusseted tongue keeps dirt and debris out Padded collar for added comfort Triple bonded nylon thread used in every stitch for durability Gore-Tex Pearl waterproof liner for superior protection Gore-Tex Thermium insulation lining over toes to lock in warmth zones over toes in frigid conditions Soles by MICHELIN outsole for superior durability traction and agility Airport friendly nylon shank Heel counter custom shaped with Back Part Molding to eliminate "break-in" discomfort Ergonomically molded thermoplastic toe box ensures ideal fit from the first wear AR670-1 compliant Package Contents: Altama Apex SBM TruFit System Tactical Boots - Men's Altama 388203-TF-11: Apex SBM TruFit System Tactical Boots - Mens Coyote 11 US