I ordered these shorts because the 'Black 9' print was on sale. Hurley's size chart is a bit difficult to understand, or maybe it's because I have a weird hip-to-waist ratio. Either way, I ordered the S because that's what category I fell into according to the size chart. I'm 5'3-5'4 and 111lbs. My waist measures about 26.5", and my hips measure about 31.5.". These shorts are VERY loose. My hips hold them up, but I wouldn't count on them to stay on while I was swimming. I chose not to return them because they're fine for lounging around, and I hadn't planned to use them in the water. The waistband is nice and thick and comfy. The only weird thing, which my boyfriend pointed out, was that the colour-blocking on my particular pair of shorts included a pink stripe right up the buttcrack. It doesn't bother me, but some may not be a fan of this look. I'd go with a different print if this is a concern for you. Overall, good value for the money, but definitely be careful with the sizing if you're looking for a fitted short!