Tecnica Unisex Moon Boot Vinyl Vinyl Enjoy a fabulous twist on the original Moon Boot&reg; with the Vinyl. Vinyl shell to keep out all that unwanted weather. Full-length wraparound lacing with an adjustable collar. Soft textile lining will keep feet toasty warm. Synthetic outsole for traction and stability. Measurements: Weight: 1 lb 14 oz Circumference: 20 in Shaft: 15 in Product measurements were taken using size 45-47 (US Men's 11-12.5), width Medium. Please note that measurements may vary by size.