STrong knee sleeves feel stiffer than SBD knee sleeves; At the same size (example: size large), the STrong knee sleeves are slightly tighter than SBD sleeves; BarBend: SBD Knee Sleeves vs Strong Knee Sleeves Review. A7 CONE knee sleeves are structured with a slight downward cut panel on the back of the quad and calf to make sure these have the ultimate compression at the knee joint, while allowing light stretch at the top and bottom of the sleeve. Summary: BarBend declares that both knee sleeves are nearly identical and both high quality. The knee sleeves are made to USAPL specs and are currently under review to … A7 CONE knee sleeves are USAPL and IPF approved starting January 2019 and also approved for use in all USPA and IPL powerlifting competitions.competitions. The SBD Knee Sleeves start around $82.50, which is a little high for sleeves, but I feel is fair for the type of athlete buying them. A7 CONE knee sleeves are designed to provide the ultimate compression at the knee joint, while allowing light stretch at the top and bottom of the sleeve. The knee sleeves are approved for use in all USPA and IPL Competitions. Both 7mm neoprene and well-manufactured