Shock Doctor SVR Recovery Compression Calf Sleeve Gradient compression provides faster recovery as increased oxygen flow accelerates lactic acid removal The RE+ SVR Recovery Compression Calf Sleeves have a graduated grading of 18-25 mmHg Antimicrobial fabric wicks away moisture and odor causing bacteria keeping you dry and comfortable Sleeves work best in combination with foot movement as it aids the circulation back up to the heart Ventilated, seamless knit construction helps dissipate muscle heat temperature regulation