Easy handling makes quick application and removal. Circaid Built-In_Pressure System (BPS) is adjustable, measurable and re-adjustable compression. Made of breathable material with high working pressure. Readjustable bands ensure accurate pressure. Adjustable compression rates: 20 – 30 mmHg, 30 – 40 mmHg and 40 – 50 mmHg. Small/short size is 11 inches in length; fits ankle circumferences 7.6 to 8.6 inches and calves 10 to 14 inches in circumference.