Altra Altra x Smartwool Escalante 4 Road-Running Shoes 。Special edition between Smartwool and Altra. Original footshape like Altra Escalante 1.5. Wear on both soles on both heels. Wear inside at back of foot. Men\'s Escalante 4 Road Running, Speedwork, Walking Altra Escalante shoe meets a signature Smartwool® Merino blend upper in this limited-edition model, designed for warmth. A versatile shoe, recrafted for versatile temps. The Escalante 4 is modeled after the fan-favorite Escalante 1.5, with FootShape fit and greater flexibility. We collaborated with Smartwool® to add a Merino blend upper, designed to improve thermal comfort. Tackle fast training runs, daily walks, or everyday errands in any season. An evolved footbed feel combines with Altra EGO™ midsole foam for responsiveness and comfort. It’s got zero drop and our roomiest toe box, with plenty of room to help your toes move more freely, and space through the midfoot. Lace up, bundle up, and Stay Out There™! Heel-to-Toe Drop 0mm Upper Smartwool® Merino blend Midsole Altra EGO™ Outsole Rubber Weight 9.5oz/ 269g Cushion Low Stack Height 24mm/24mm Support Neutral FootShape Original