Neoprene The most agressive sleeves on the planet 7mm x 30cm USPA Legal. IPF Legal The most support for the biggest squats NOW IPF approved until 12/2026. Titan TKS Knee Sleeves The strongest, most supportive sleeves on the planet Extremely stiff and tight 7mm thickness 30cm in length 5mm zig zag reinforced stitching Seam tape Construction USPA, IPL, USAPL, NASA, USA Powerlifting Approved The price is for a pair These are heavy sleeves. they weigh 2 or more pounds per pair Comes with a FREE carrying bag Black only SIZING: THESE ARE VERY STIFF AND RIGID. IF IN DOUBT ABOUT THE SIZING PLEASE GO UP A SIZE. Titan offers a limited 1-month warranty. This is on a case-by-case basis and the defective sleeves must be sent to Titan for warranty issues. See the additional picture for the size chart. Small 12.25-13 inch knee, medium 13.5-14.25 inch knee, Large 14.5-15.5 inch knee, XL 15.75-16.5 inch knee, 2XL, 17-18 inch knee, 3XL 18.5-19.75 inch knee, 4XL 20-21.25 inch knee, 5XL 21.75-23 inch knee, 6XL 23.25-24.5 inch knee