Valena boots are designed for flat work or turnout. The durable marine vinyl outershell and WoolBack™ fleece lining combine to make a comfortable, long-lasting boot. Extra-wide elastic maintains its stretch over hard use and many washings, keeping the boots securely in place without adding pressure points. Sold as a pair. Made in the USA. Marine vinyl has high abrasion-resistance and will not mold or mildew. WoolBack™ 100% machine washable virgin wool retains its pile and will not clump or flatten. Made in the USA. Easy Care: machine wash warm, tumble dry low or line dry. HIND BOOTS Top Width (in.) Midde Width (in.) Bottom Width (in.) Overall Length (in.) Small 10 10.5 11 10 Medium 11 12 12.5 11 Large 11.5 12.5 13 11.5 X-Large 12 12.5 13.5 11.5 To measure, lie boot flat. Top Width - measure width within 1/4" of top edge. Middle Width - measure at widest. Bottom Width - measure width within 1/4" of bottom edge. Overall length - measure top edge to bottom edge in center.