The vegan Mono Sneaker by nat-2™ is also made from genuine, certified organic cotton, bamboo, cork, sugar cane, and recycled rubber. Ideal for any season and even barefoot. The unique, monochrome look was achieved through a special process in the blend of recycled rubber. The removable insole is also made of recycled cork and sugar cane foam. Fair, handmade in Spain. Outer material: certified organic cottonInner lining: real bamboo Insole: removable, made of real cork and sugar caneOutsole: 100% real rubber, recycled Note: The shoes are vulcanized using heat, which is technically and ecologically sensible, instead of being glued. Therefore, the uneven edges on the bezels are completely normal and a quality feature, not a flaw. Unisex fit: falls approx. one size smaller (example: if you buy a classic size 38, order a 39)______________________________ The vegan Mono Sneaker by nat-2 ™ is also made of real certified organic cotton, bamboo, cork, sugar cane and recycled rubber. Ideal for every season and even barefoot. The unique, monochrome look was achieved through a special process in the mixture of recycled rubber. The removable insole is also made of recycled cork and sugar cane foam. Fair, hand-made in Spain. Outer material: certified organic cotton Inner lining: real natural bamboo Insole: removable, made of real cork and sugar cane Sole: 100% real rubber, recycled Note: The shoes are vulcanized through heat, in a technically and ecologically sensitive way, instead of being glued. Thus, the uneven edges on the bezels are completely normal and a sign of quality, not a flaw. Unisex Fit: one size smaller (example: if you have a classic 38, better order a size 39) ______________________________________________________________________________________ Insole dimensions | Insole Measurements: Size = Length x Width | Size = Length x Width 36 EU = 23.5 cm x 7.6 cm 37 EU = 24 cm x 7.6 cm 38 EU = 24.8 cm x 8.0 cm 39 EU = 25.5 cm x 8.0 cm 40 EU = 26.2 cm x 8.2 cm 41 EU = 26.8 cm x 8.5 cm 42 EU = 27.6 cm x 8.8 cm