Marketed as US 9-12.5. Too big for my size US12 feet. Stretch above 18inches and measures over 13 inches unstretched. Manufacturing error? : r/ socks
How to Measure Your Foot to Find the Right Shoe Size. Nike.com
Black Half Crew Socks 12-Pack | Black Half Crew Socks 12-Pack | True Classic
Amazon.com: adidas Calf Compression Sleeves for Women and Men - Pair of Calf Sleeves for Running, Training, and Stronger Workouts - Breathable and Lightweight - Durable Calf Compression Support - Black, L/XL :
Find Your Perfect Sock Fit - A Guide To Getting The Right Size - The Socks Manufacturer