The V-12 model is made out of ecological and sustainable materials.- Upper in B-Mesh: made from recycled plastic bottles (100%)- Panels made out of leather and suede- Logo V made of rubber and rice waste (22%)- 100% organic cotton laces- Soft inner lining (33% organic cotton & 67% recycled plastic bottles)- Insole made of sugar cane (40%), organic cotton (12%), amazonian rubber (11%), & recycled E.V.A.* (11%)- 59% bio-sourced and recycled outsole: made from amazonian rubber (24%), rice waste (23%) & recycled rubber (12%)- Made in Brazil, in the region of Porto AlegreB-Mesh is made out of 100% recycled polyester, coming from recycled plastic bottles transformed into flakes and then into fibers in a Brazilian factory. 3 plastic bottles are needed to make one pair of VEJA. B-Mesh is a light, breathable and waterproof fabric.The leather come from farms in Rio Grande do Sul. It is tanned in Brazil according to REACH standards. The use of water is reasoned during the tanning process. The ta