La Sportiva Men's Ultra Raptor GTX Trail Running Shoe gore-tex ALL TERRAIN - A perfect balance of comfort, traction, and support make the Ultra Raptor GTX a highly versatile athletic shoe; HF reinforcements on the lacing harness provide an adjustable fit; Abrasion resistant microfiber uppers are built to last GORE-TEX PROTECTION - Waterproof, breathable Gore-Tex Extended Comfort technology keeps your feet dry during extended day hikes or overnight backpacking trips no matter the weather BREATHABLE - Ultralight AirMesh fabrics keep your feet cool on hot days, control moisture, and prevent blisters during long distance runs even in the heat of summer STABILITY & CONTROL - FriXion XT sole with Impact Brake System and X-Axis provides excellent traction and stability on steep descents, slick trails, and uneven ground; Confidently navigate rocks, roots, and other obstacles with the sticky rubberized sole ANKLE SUPPORT - Reinforced TPU transkinetic heel stabilizers provide the extra support and stability backcountry trail runners and ultralight backpackers need for high mileage days