The Alta Vibram model One of our new additions to the collection, and just in time for summer. The perfect combination of style and technicality. The new sustainable Vibram sole will give you maximum grip and durability. The Alta model will be your best friend in all your adventures. Materials and Features Upper: Canvas: 60% organic cotton / 40% recycled PET (recycled plastic bottles). Vegan Microfiber 40% recycled PET / 60% Polyester Inner fabric 100% recycled PET Laces 55% organic cotton / 36% recycled PET / 9% Polyester Insole: Cork, Algae (bloom foam) and EVA. Outsole: Vibram Ecostep Natural sole made with 90% natural materials. 35% recycled EVA.