One of several items under intimate apparel I've bought from Amazon, and so far this is the best.The (L)arge Red Lace Boyshort fits snuggly on a 29" waist (they recommend a smaller (M)edium for 29"--but go up a tick like other reviewers mentioned), the material has been surprisingly solid for me, it has been through about twenty-ish machine washes (no delicate items bag) in the last four months of ownership without unraveling or tearing. I will mention that other reviewers haven't had as much luck with durability! The elastic on the waist isn't any looser, there is some widening around the thighs (it is okay elastic, not magic).Yes the crotch opening is somewhat wide compared to the photo (I personally found other items had too small of an opening), and it would be nice if they'd show that--if they want to avoid a human model, this is what fashion dummies are for! Anyway, I appreciated that the opening was wide and long enough to provide access to all areas.Now, decent material is nice (and the texture is comfortable), but does it stay in place? This is so far the only crotchless item I've picked up where I can say that it stays put during activity pretty well. It can be moved sure, but the slippage is minor, exactly what I was looking for, minimal distracting wedgies! I imagine that for a different butt it wouldn't fit as well (say, you have the same sized waist but a slimmer shape in back, or if you're super gifted), but for a slightly protruding shape it was very nice.I'm pleased.I bought these in black, size Large. My pant line is 36-37 inches around, and each thigh near my groin is about 26 inches. I went off of another buyers review that said they bought a size larger than they buy in Victoria Secret. There, I wear a medium, so I bought a large.These arrived at my house two days after I ordered them, which may be because I don't live too far from the ship center, or may be because they have incredible shipping, who knows. Either way I was excited to see that these were "Out for Delivery" when I woke up this morning! They came with tags on, inside a cellophane-like sealed bag, folded (not just tossed in, which is great), inside of a bubble wrap, plastic envelope.The large fit me perfectly. When I opened the package, they looked a little big, then when I held them up to get a better look, I knew they would fit. The ruffles on the back are incredibly adorable. The black is a true black, not a faded, or slightly dark blue black. The crotchless section looks like it's going to tear easily, because it's very thin hemming, but for how cute these are and how well they fit, I wouldn't mind buying these again after a few uses.The pictures just really don't do these justice. I'm a lot bigger than the girls on the pictures, 36-29-41, but these look amazing on me. I might even say they look better on me than they do on those models (booty for the win)! I'm incredibly happy with my purchase!These panties were great the first time used, though I could have sized up one size and they would have looked a bit better. The husband didn’t mind. After one washing however, I pulled them out to hang dry and noticed that little elastic threads have snapped and frayed all over the article. If you get this definitely size up and only wash it by hand. Even a delicate, cold cycle in my high end washer was too much for this piece.The product was as expected fit great and I would have given it 5 stars but every time I wore this (red and the black one) I ended up getting a uti. I have never had one before so between my Dr and back tracking the first one I got. I had 3 utis in 4 weeks only when I wore this product (i wore it only 3 times). I am on immune system suppressants so maybe if I was not on them I would not have gotten sick. Other than that this drove my husband and I though the roof excited.I was concerned with the opening and the size variation. I ordered a large and wear a med/large, so it fits perfectly (5"7 and 185). I think, the size may vary based on the shape of your body? I'm glad I took a chance instead of looking for something else after reading the reviews. The opening was perfect, definitely makes my girl parts look good, lol. I'm more pleased with the feel of the material, though. It's definitely very very soft (I would go as far as saying it's better than Victoria's Secret). The quality is amazing, especially for the price. I ABSOLUTELY will be ordering one in every color! A must buy!Sizing runs small. The lace was soft and red color was pretty. I liked the opening. It is perfectly sized and does not run up the back. Truly a surprise when you want to see it. I followed the sizing chart and bought a large when I normally wear medium. However still too small. I would've rated higher but too tight I can't wear them. Disappointed because color, style lace all spot on yet too smallLike the look, but for a small frame person who wears M in Victoria Secret, I found them a bit small. I have ordered L now.If you are very skinny the size should be OK, but if you have a bit of fat it will show as if you had a lot.Otherwise, they are soft and the material is comfortable.No "test drive" as yet.The top band of elastic that goes across the belly and hips isn't as elastic as I would like but wasn't too snug. It fit well at the leg holes. The split goes all the way up the back side so plenty of room for whatever naughty things you have planned.It was meant as a nice sexy Valentine's Day surprise and it worked perfectly for that.