Please see alternate images above for SIZING and additional description information. --OA Lite Ideal ApplicationThe OA Lite is ideally suited for adult patients with mild unicompartmental osteoarthritis who engage in activities of daily living or have sedentary lifestyles. Features and Benefits? Pre-loaded hinge (up to 6? of correction) incorporates flexion and extension control ? Single upright is malleable to allow for further load adjustments and features thigh and calf paddles to mitigate hinge rotation and ensure consistent off-loading through the range of motion ? Patella donut provides full- circumference stabilization ? Arthritis friendly with reinforced strap ends, thigh grip, and pull loops? Wraparound thigh and sleeve calf design facilitates ease of application/removal ? Breath-O-Prene fabric eliminates skin irritation and provides comfort by wicking away moisture ? Low profile (0.050"" thick), lightweight, MicroMesh fabric leaves skin cool and dry ? Floam condyle pad with 100% memory for increased comfort and compliance ? Included 2, 3, and 5 mm NEO condyle pads ? Included posterior thigh and calf straps to improve brace suspension? 7 sizes and 1 length (14.5"") ? 6 month warranty on soft goods and hingePart Number: 11-1531-xMedial CompartmentRight Knee11-1532-xMedial CompartmentLeft Knee11-1533-xLateral CompartmentRight Knee11-1534-xLateral CompartmentLeft Knee Colors Available: black Sizing Information: XS-XXXL Off-The-Shelf Sizing Chartx=1=XS13""-15 1/2"" (33-39cm)x=2=S15 1/2""-18 1/2"" (39-47cm)x=3=M18 1/2""-21"" (47-53cm)x=4=L21""-23 1/2"" (53-60cm)x=5=XL23 1/2""-26 1/2"" (60-67cm)x=6=XXL26 1/2""-29 1/2"" (67-75cm)x=7=XXXL29 1/2"" -32"" (75-81.25cm) Measuring Information: Measurements taken 6"" above mid-patella (Brace hinge is on opposite side of affected compartment) Accessories:11-0644-9-00000Opal Measurement Device (Complete Set)12-1