Re-engineered for sustainable performance. This innovative new hike shoe features 90% recycled materials in the upper and carefully-chosen sustainable materials in the midsole and outsole. The ROCLITE RECYCLED 310 is light, agile and grippy, so you are fast on your feet and have a low impact on the planet. Perfect for fast-hiking and adventures over all types of terrain. Our most sustainable and environmentally friendly shoe ever. Upper material: Knitted from 100% rPET yarns, which were recycled from discarded plastic bottles. Overlays and rand: The extra-protective overlay and rand materials on the upper are CLARINO® and use 90% recycled plastics, delivering a soft feel with outstanding strength and durability. Tongue, collar lining, lacing & webbing: Tongue and collar lining designed using 100% recycled foams, which have been upcycled after previously being used in other products. Lacing and webbing also 100% recycled. Footbed: Made using recycled EVA (an elastomeric polymer) chips, it delivers high levels of rebound and spring. Midsole: BLOOM® foam midsole cushioning is made from 10% algae biomass which cleans and restores the environment when harvested. Outsole: Natural gum rubber that has not been dyed, contributing to a vegan-friendly product. Studs: Iconic ROCLITE 6mm studs that deliver superbly versatile grip across all terrains, from hard ground to mud and everything in between.