Regina C.wrote a review of Mountain Hardwear Advance Lightweight Brief - Women's on September 4, 2009
I like these. Breathable, comfortable, no tag to annoy you, and they stay in place. Be warmed they are the size of a full swimsuit bottom. This may not bother you whatsoever, but it limits which casual clothes I can wear them with. I like bikini-style panties better, so I probably wouldn't buy another pair unless they were on super clearance.
I liked the Patagonia Barely Bikini better. Again, if this isn't important to you, you will probably really like these. The fabric is medium weight, not too hot or too cool. Seams are not noticable, as advertised.