Allbirds Wool Runners, NWOB/New Without Box, Size 7, color is Natural Grey (Light Grey Sole). A true original, Wool Runner combines soft Merino wool with cloud-like comfort. Cozy fit that's soft and itch-free on the inside and durable on the outside, while a sugarcane-based SweetFoam midsole offers crush support for all-day wear. Machine washable.