I bought the ankle strap because I am not a big fan of using community straps st the gym. They are covered in sweat and bacteria. These straps are amazing very thick and great quality! You never have to worry about the Velcro coming undone During your workout or the straps falling apart on you. I will say I made the mistake of only buying one strap and it is annoying switching legs in the middle of the workout so if you’re looking for convienence but the set and save yourself the hassle!