Fly lightly over the trail and be the first to crest the ridge in speedy performance and design of the Merrell All Out Blaze Aero Sport hiker. Lightweight, breathable mesh upper with supportive synthetic overlays. Bellows tongue helps keep debris out. Merrell Omni-Fit lacing system promotes a precise, glove-like fit. Molded TPU heel counter provides added stability. Heel pull loop for an easier on and off. Lightly padded collar. Breathable mesh lining is treated with odor-fighting M Select FRESH technology to keep feet feeling fresher longer. Foam footbed offers light underfoot comfort. UniFly midsole delivers lightweight underfoot protection. 5 mm lug depth. Vibram outsole. Imported. Measurements: Weight: 13 oz Product measurements were taken using size 11, width M. Please note that measurements may vary by size. Weight of footwear is based on a single item, not a pair.