100% Mesh/Synthetic Imported Vibram sole Bellows tongue helps keep debris out. Molded TPU heel counter adds stability by locking the foot into place. Contoured tongue and lightly padded collar for next-to-skin comfort. Breathable mesh lining features M Select? FRESH technology to help prevent odors. Foam insole. UniFly? midsole connects your foot with the trail, and provides cushioning for underfoot protection from the terrain. TC5+ Vibram? outsole. 5 mm lug depth. Imported. Measurements: Weight: 9 oz Pr Escape the city and take to the trails in the vegan-friendly Merrell? All Out Blaze Aero Sport hiking shoe! Breathable mesh and durable synthetic upper materials. 100% vegan-friendly construction. Merrell Omni-Fit? lacing system allows for a snug, glove-like fit.