Men's XL in these is equivalent to an American size M. If you're over a waist size of 32 US, get the XXL. Sounds crazy but believe me it very true.

Need to buy a size larger.

I'm a small framed male, 5' 5" of 138 pounds. I ordered the MEDIUM and the fit is perfect after a wash and dry. I like my undies to fit snug, but not tight. I got tired of the choices in the 'big-box' stores, ... the waist band would ride to high, ... bulk in the crotch, especially if one is wearing low-rise pants. The "Jockey" brand micro briefs are decent, but would wear out fast, due to the weave of the cotton material. Two years ago I looked into something different, ... asking myself, "Why shouldn't I feel as sexy as any female with what I wear for underpants". I ordered another brans of similar design and material, ... they are still going strong, and I suspect these will do the same.
The construction is very well done, and the material though NOT SILK is actually better than silk, as I've tried silk bikinis, ... they don't breath like these. Silk is great for absorbing moisture as a hiking inner sock with boots for 'whipping' moisture, but not really practical for underwear for an all day wear. These are the next best thing. These are not really a 'micro brief', but they certainly feel like it. These are a decent low cut bijini, on a high cut style in the hip. The fit across the butt (at least mine) is taught and without excess of material bunching between the buttock and thigh. The cut is actually quite lean across the glut area, ... riding in upon the butt cheek when compared to other bikinis on the market. The cut is trim, ... in the backside anyway. As for the front support, it's there, and there is sufficient room for 'the boys' to breath, and feel super -sexy at the same time for the ladies, no matter when you wear 'em.. These are simply HOT,HOT,HOT!. Try apair, or two, or three, ... you'll ask yourself why you waited so long to get brave within yourself. These aren't 'panties' for men, ... those are out there for the taking. These are made for males who simply want to take and feel, a different route within our todays social programming wothin our society. Be brave, try them out. The price is great and you won't be sorry you did.

I was looking for underwear that felt silky and had a sexy look. I hate the way most men's underwear hits right at the waist and just emphasizes your love handles. These sit low on the hips where the flesh is firmer, and they look great.

I bought three different brands which I will compare in this review:

* WINDAY Men Briefs Breathable Ice Silk Triangle Bikinis and Briefs D318
These are probably my favorite. The fabric feels very smooth and silky, but it's NOT silk. "Ice silk" is a trade name. They are relatively small in the back, which works for me because I have a very small butt. It may not work for everybody. I ordered four in the XL size and four in the XXL size, and the fit is very similar and very snug. I happen to like that but you may not. The pouch is average size for an average size guy. They're comfortable for day wear but not to sleep in. I sleep on my side and the elastic bands dig in too much for all-night comfort.

* JINSHI Mens Bikini Briefs Low Rise Tagless Bamboo Underwear XL(31"-34")/US size M
These are probably the sexiest of the three, although the bamboo fabric isn't all that silky, more like modal or fine cotton. But the fit with the side strings is very hot-looking. Again, these are comfortable for day wear but the side strings are thick and leave marks. I wear Size 34 Levis and found the fit to be snug but not uncomfortable.

* Summer Code Mens Basic Bikini Briefs Pack Low Rise Ice Silk Underwear
These are very similar to the Winday briefs but cut a little more generously all around. The fabric is silky and stretchy, and I found the pouch to be more than ample. Also, it has a little seam on the underside that makes kind of an awkward point if you don't have enough down there the fill the pouch completely.

Sheer, size up to get more coverage.