Adult Sock SizingOutdoor Sock SizingKids' Sock Sizing

Thorlo Adult Sock Lettered Sizing

SIZE	XS	S	M	L	XL
Men's	*	*	8.5-10	10.5-11.5	12-14
Women's	5-6.5	7-9	9.5-11.5	*	*

Thorlo Adult Sock Numbered Sizing

SIZE	9		11		13		15
	USA	EURO	USA	EURO	USA	EURO	USA	EURO
Men's	*	*	5.5-8.5	38-42	9-12.5	42.5-46.5	13-15	47-49
Women's	4-6	35-36.5	6.5-10	37-42	10.5-13	42.5-45	*	*

Thorlo Kids' Sock Sizing

SIZE	7		9
	USA	EURO	USA	EURO
Men's	10-13	27-30	13.5-4	30.5-36
Women's	10-13	27-30	13.5-4	30.5-36