Merrell Antora 3 Thermo Mid J067776 Wos filter Shoes and folds open significantly more brand Birkenstock and folds open significantly more 33 cmSize 39: approx Paired with a Vibram Ice Trek outsole for best in class traction when the temperature drops paired with 100 grams of insulation FEATURES • Quilted ripstop and synthetic upper • External rear sling locks in the heel • Protective and abrasion resistant synthetic heel and toe cap • Shearling lining • 100 grams Primaloft® Gold Eco Series synthetic insulation • 100% recycled mesh footbed cover • Cleansport NXT™ treated for natural odor control • 50% recycled EVA foam footbed • FloatPro™ Forefoot and heel cushioning pods • Super Rebound Compound midsole provides durable shock absorption to help reduce torque and allow for a smooth transition into the midfoot • Vibram® Icetrek outsole designed to provide the improved grip on very cold