Embroidered Choker Neclace

An embroidered choker necklace in blue and plum. I hand crocheted the cotton lace edging and sewed it on, also by hand. I am a bit stuck as to what to use for a closure. I tried a hook and loop, but it is hard to do at the back of your neck. I might try velcro. I think that would give a more personal fit, too.