Innovative tech, personalized comfort, authentic adidas style. Find your way through the entire mountain in the Tactical ADV boot! ; Synthetic and textile upper. ; Articulated cuff shell design partnered with a 3-D molded tongue for a more natural progressive flex and longer boot lifespan. ; Silver level, heat-moldable Ultralon foam liner conforms to the contours of your foot for a comfortable, customized fit. ; boost features next-level cushioning: The more energy you give, the more you get. ; Inner ankle harness with speed lacing system secures your foot inside the liner and shell for a no-slip fit. ; Rubber backstay helps prevent slippage between boot and binding highbacks. ; Grippy, rugged multidirectional rubber outsole for traction on snow, ice, and top sheets. ; Medium support flex: 6/10 ; Imported. Measurements: ; Weight: 2 lbs 7 oz ; Shaft: 10 in ; Product measurements were taken using size 10, width D - Medium. Please note that measurements may vary by size. ; Weight of footwear is based on a single item, not a pair.