All vegan uppers made from a combination of mesh, nylon, synthetic or canvas materials.Per Onitsuka Tiger, the Ultimate 81 are constructed with vegan uppers. Long considered to be the absolute in technical running during the '80s, the Ultimate 81® from Onitsuka Tiger™ by ASICS® makes a strong comeback with modern styling that's sure to please old and young alike! Lightweight and durable sneaker. Lightly-padded collar and tongue for comfort, fit and feel. Textile lining with cushioned footbed. Traditional lace-up closure for secure fit. Two-tone EVA midsole with flex "channels" on heel provides cushioning and added flexibility. Supportive TPU heel piece. Rubber outsole for great traction. Imported. Measurements: Weight: 11 oz Product measurements were taken using size Men's 9, Women's 10.5, width Medium. Please note that measurements may vary by size. Weight of footwear is based on a single item, not a pair.