OS1st KS7 Knee Brace (One Sleeve) stabilizes The Patella, Provides Injury Recovery and relieves Knee Pain from Runners Knee, Jumpers Knee, Arthritis Pain & patellar tendonitis PERFORMANCE FEATURES: Relieves pain and stabilizes the knee joint while active; Improves patella tracking; Features a stay-in-place design through hypo-allergenic gel anti-migration system; Supports knee using Medical Grade Compression. TARGETED CONDITIONS: Targets and treats runners knee, patellar tendonitis; patella tracking and post-injury and post-surgery instability. COMFORT-FIT-SUPPORT: Light-weight, thin design provides support to the tendons and joints to keep your knee healthy and mobile in a more wearable option. Seven targeted zones of compression increase stability, circulation and injury prevention. HIGH QUALITY: Made with the highest quality micro-nylon/spandex combination, treated with an anti-microbial and moisture-wicking agent making our sleeves odor controlled and breathable in a more wearable option. ULTIMATE SATISFACTION: OS1st products are backed by a 100% customer satisfaction guarantee. With proper care, hand washing and air dry, OS1st products are made to provide lasting support for up to six months. Support that moves with you naturally No wrinkling or migration to slow you down or interrupt your focus TRUE breathing fabric with moisture and temperature control Thin power that performs the way you perform