OS1st Performance Knee Sleeve mens-shoes-casual 3-5-4 Design: a 3mm chest

3-5-4 Design: a 3mm chest panel changes to 5mm neoprene around the core

with a waterproof GORE-TEX® layer for wet conditions

Made in the USA of Imported Yarn: 46% Merino Wool 29% Nylon 22% Recycled Nylon 3% Elastane *Specific percentage of Recycled Nylon will vary as we transition to 100% Recycled Nylon in future seasons

A floral arrangement adorns these mid-calf crews

OS1st Performance Knee Sleeve mens-shoes-casual 3-5-4 Design: a 3mm chestRelieve Knee Pain Caused by Runners Knee, Jumpers Knee (Patellar Tendinitis), Arthritis, and Other Painful Conditions With One Light, Comfortable Knee Sleeve Single Sleeve per package Targeted Conditions: Arthritis Runner's Knee Iliotibial Band Syndrome Patellar Tendonitis Reduces Swelling Eases Knee Pain Performance Features: Patented medical device for Patellar Tendonitis, knee pain and swelling Easy on fit for continuous support, day or night