These tough Karakorum mountaineering boots from La Sportiva supply plenty of heavy-duty support for extended hauls and have the added bonus of crampon compatibility. Uppers feature 2.8mm Idro-Perwanger silicone-impregnated roughout leather, which is highly water-resistant, breathable and extremely abrasion resistant. Vibram?« rubber toe rands protect feet and uppers from bumps and abrasion; cuffs are reinforced with Cordura?« nylon for increased longevity. Dry-Best?« linings optimize moisture transfer away from feet with a system that includes Hydrofil?« wicking nylon, keeping feet dry, cool and comfortable. 3D Flex?äó ankle hinge system articulates for side-to-side flexibility and improved agility on uneven terrain; system also helps shorten break-in time. Polyurethane SBR Aircushion midsoles absorb shock and provide ample cushioning for long approaches. 8mm high-density nylon insoles with anti-torsion plates provide support underfoot for handling uneven terrain and heavy loads. Vibram Couloir rubber outsoles supply superb traction on rough terrain; compatible with hybrid crampons.

The La Sportiva Trango S Evo GTX mountaineering boots with Gore-Tex?« waterproof protection feature all synthetic construction and a unique ankle-hinge system for ample support. Water-repellent Cordura?« nylon uppers with Flex Tec 2 rubber-coated, Aramide-reinforced polyester panels are super durable and lightweight. Reinforced with water-repellent Lorica?« synthetic leather for maximum durability and strength. Waterproof, seam-sealed Gore-Tex?« inserts keep feet dry while allowing excess moisture vapor to escape to prevent overheating. Wicking Dri-lex?« nylon linings absorb excess moisture and disperse it for fast drying and enhanced comfort. Fully-gusseted and padded tongues keep out debris and water while relieving lacing pressure. Full rubber randing protects feet and uppers from abrasion and bumps while enhancing edging ability on thin edges. Innovative 3D Flex ankle-hinge system offers ample support while front-pointing yet stays flexible enough for flat-footing. Trailflex nylon midsole supports with half-length steel shanks provide optimal torsional rigidity while remaining comfortable for long approaches. Dual-density micropore rubber provides fine-tuned performance with differing levels of cushioning and support for long-haul trips. Lasted specifically for a woman's foot with a broader toe box and narrower heel for a great fit. Durable Vibram?« Dru rubber outsoles deliver amazing traction on wet and dry surfaces; undercut heels for braking and edging platforms at toes. Outsoles are compatible with both strap-on and hybrid(New-matic) style crampons.

Versatile mountain boots for difficult, mixed terrain, Lowa Mountain Expert GTX mountaineering boots feature tough leather construction with Gore-Tex?« protection. Thick and durable split-grain leather uppers, with Cordura?« nylon at cuffs and tongues, deliver ample support, durability and abrasion resistance. Seam-sealed Gore-Tex?« liners with wicking polyester linings deliver complete protection and allow moisture vapor to escape. Full rubber randing protects feet and uppers from abrasion and impact, and helps increase edging effectiveness. Warm, light and nonbulky PrimaLoft?« polyester microfiber insulation delivers great warmth. Durable, shock-absorbing polyurethane midsoles feature a thin upper layer of EVA to supply all-day cushioning and comfort. Rigid, full-length nylon shanks control flex and add the stability needed during use on rough terrain and with crampon use. Vibram?? outsoles deliver solid traction on mixed terrain; outsoles are step-in crampon compatible (sold separately).

Looking for a boot to test your mettle on the long haul up Rainier? The Scarpa Summit GTX is the boot for you, providing comfort, performance and 4-season use. Single-piece, reverse suede uppers are tough and treated with HS12 waterproofing. Articulated, padded ankles allow essential freedom of movement. Gore-Tex?« liners make these boots waterproof yet breathable, for comfort in a variety of conditions. Duratherm?« insulation and additional padding make boots warm and supportive for 4-season use. Stiff Pro-Fiber polypropylene midsoles have polyurethane-reinforced heels for toe-strap crampons. Pro-Fiber midsoles offer ample rigidity to support the crampons, yet also have enough longitudinal flex for comfort when walking. Vibram?« outsoles offer excellent grip, stability and durability; high rubber rands also provide protection against abrasion.