The Walking Boot Undersleeve can be born 24/7, and is designed to be worn underneath a walking boot. Wearing this product can reduce swelling, ease discomfort, and encourage mobility in the ankle or foot. How it works: The fabric is embedded with germanium and carbon, which are semiconductors. When brought into contact with the body, these semiconductors help to maintain healthy circulation. MEN WOMEN EUR SMALL 4 - 6.5 5 - 7.5 36 - 39 MEDIUM 7 - 9.5 8 - 10.5 39 - 42 LARGE 10 - 12.5 11 - 13.5 42 - 46 X-LARGE 12+ 13+ 46+ Suggested Indications: Strains/SprainsFracturesJoint PainPlantar FasciitisTotal Ankle ReplacementAchilles Tendon RepairNeuropathyPoor CirculationOsteoarthritis/Rheumatoid ArthritisGeneralised Pain & SwellingAcute Injuries & Chronic ConditionsBursitis/TendonitisPre/Post-Operative SurgeryPost Arthroscopic ProceduresPreventative Muscle Injury & RecoveryIn Conjunction with Various Braces as an Undersleeve