Classic colors, marl weave. Marls get their distinctive look by weaving two different-colored strands of yarn together giving them a texture and depth. Marls feel and perform just like Bombas' other cotton socks, just with a bit more pizzazz, oomph, panache...you get it. Fit most youth ages 5-11 or US kid shoe sizes 9T-3. 4 purchased = 4 donated.