Product details step towards a better future with these tree runner sneakers by allbirds. Breathable and lightweight, they're perfect for warmer weather thanks to the responsibly sourced eucalyptus tree fiber (fsc-certified tencel™ lyocell) upper that feels silky smooth and cool on your skin. In a limited edition colorway, they're set on a sweetfoam® midsole made with sugarcane-based green eva and a castor bean oil-based insole foam. Sku: a10658-lgrlgr grey fabric lining: fabric lining closure: lace-up fastening toe style: round-toe made in: vietnam fits true to size, take your normal size