Allbirds Tree Flyer 2 Running Shoes (For Women) Colors Available: Blizzard (Blizzard) (01) Size: 12.5 Head out on the trail in these Allbirds Tree Flyer 2 running shoes, made from breathable TENCEL® with itch-free, wicking merino wool lining, a uniquely shapedSwiftFoammidsole and a grippy natural rubber outsole. Breathable TENCEL® knit upper with TPU overlays Itch-free, moisture-wicking merino wool lining Lace-up closure Sock knit collar Removable cushioned SweetFoam® footbed Uniquely shaped Pebax SwiftFoam midsole for increased cushion Made in Vietnam