To measure your calf take the width at the widest part of your calf

Crafted from soft 4-way stretch fabric

Lined in synthetic with a cushioned leather footbed

This slipper would make a great gift for any man this Christmas

The North Face Mens Base Camp Slide III TNF Black/TNF White Size:12 To measure your calf takeThe Base Camp Slide III is a fashionable and comfortable mens slider sandal from The North Face featuring a super cushy EVA foam sole in black with TNF branding to the rear. The upper strap is in a comfy mesh foam in black with contrasting The North Face branding in white. A versatile slider which can be worn by the poolside, cruising through the streets or lounging around the house. Product Details: Upper: Synthetic Textile Lining: Synthetic Textile