Includes one pair of all-purpose traction aids and two extra spikes Small (women’s 5 thru 8, men’s 4 thru 7), Medium (women’s 8-1/2 thru 11, men’s 7-1/2 thru 10), Large (women’s 11-1/2 thru 13, men’s 10-1/2 thru 14), X-Large (men’s 14-1/2 and up) Made of black rubber compound to maximize durability in sub-zero temperatures Pulse Grip tread hugs the soles of your footwear Ice Diamond spikes provide traction and added comfort underfoot Made in China