Low-rise athletic underwear options

[rohese]

Never thought I'd be turning to a forum for underwear advice, but I'm lost. I've got a frame that doesn't really fit into anything well: 5'9", 130 lbs. So pretty skinny. For some reason it seems all underwear makers think people who wear smalls have a huge butt that can fill out underwear (and pants). The best fit I've found is Hugo Boss mini briefs in stretch cotton (5% elastane or whatever). I bought a pair of Calvin Klein Air FX in small, but they ride up pretty high in the back and are a bit loose. I want to try some full synthetic, but can't find anything that fits.

I need something that can be worn for at least two days camping and still hold the shape.

 

[oboy_oboy]

This should probably go in the small questions thread, but...

Uniqlo for cheap, slimmer cut options.
Icebreaker and Ibex for merino. I swear by these. No funk and they have a good cut.
Patagonia might be worth a shot...but IME their cut tends towards boxy/large so underwear may veer the same.

 

[ClarenceGivon]

The men’s underwear industry has exploded with innovations and technology.