UNIVERSAL Bamboo Pop Sock Solids is a wool‑free sock yarn made for breathable socks, babywear, and lightweight accessories with gentle stretch and a smooth feel against the skin. This listing is for one 100 g (3.5 oz) ball in Stormcloud (621), providing about 450 m (492 yd) in a super fine weight for crisp stitchwork. The bamboo‑cotton blend with PBT is machine washable; dry flat and swatch first to confirm gauge before starting.