Here is my version of tie-less. The hoop fits all waist sizes, is not intended to go completely around the waist. Easy. Just make like a curtain sleeve to go onto the loop. One thing I learned is sew shut ends of sleeve (for lack of technical term) and make a slit about half inch from end, on inside, to weave band into. This way the material does not slide off while wearing. One band, many very washable aprons!
http://img1.etsystatic.com/008/0/525...57711_hm1g.jpg