A customer service rep at Competitive Cyclist recommended these to me, and I like them so much that when I accidentally made a duplicate order, I kept it so I'll always have one if the other is in the laundry. The right size is very important; if it isn't somewhat difficult to put these on, they won't look good or provide compression. I tend to order up a bit in street clothes. 25" waist = 26 jeans. I've learned that with cycling clothes, they need to fit your measurements as accurately as possible. I'm 5'3", 117-120 lbs. and the XS is a perfect fit. They never need to be fiddled with or tugged at or adjusted during a ride. The legs stay in place, the straps don't move, and the placement of the waist/tummy panel is blissfully comfortable. The padding doesn't have any inexplicable ridges and in spite of fitting like a wetsuit, they don't cut or bind anywhere. The white leg band is very flattering. One caution I'd give is that the straps in XS fit me perfectly, but I think they might be too short for anyone over 5'5".