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OS1st Thin Air Performance Calf Sleeves

These calf sleeves offer excellent compression with super thin materials providing plenty of ventilation. Calf compression sleeves are designed to improve blood flow and endurance while running, as well as during recovery after your workout. These help prevent muscle cramps when your calves are totally worked by steep Eastside trails!

Sizing Guide

Size Ankle Circumference Calf Circumference
S 6.5-8.5 in (12-22 cm) 9.5-14.5 in (24-37 cm)
M 8.5-10.5 in (22-27 cm) 12-17 in (30-43 cm)
L 9.5-12.5 in (24-32 cm) 14-19 in (35-48 cm)
XL 12-14 in (30-36 cm) 14.5-20 in (37-51 cm)