Mountain Hardwear Extend Featherweight Boxer - Men's - 2006 BCS

Pros: lightweight, great material
Cons: fly stays open, tends to bunch up
I bought this for my Kili climb along with the Ex-Officio and Under Armour equivalents. This one was the most comfortable but did not support/fit very well.

These get the job done (in a strictly adequate sense). Require lots of adjustment throughout the day and more often than not the fly is open because of the huge opening. I have used better and worse.

These boxers fill a necessary niche in my base layer lineup. The fit is close, like a boxer brief, but they're long enough (about mid-thigh) to avoid riding up. They layer well under tights. The fabric is smooth and soft. So far, the anti-odor treatment has lived up to its billing: while not 100% stink-free after several days of continuous wearing, they're must less pungent than any other base layer fabric I've tried. In comparison, my older Patagonia Capilene boxers are nearly unwearable after just two days.

love these, i have 5 pair and they aren't too hot in the summer months too

I had to send these boxers back because the fly didn't stay shut. I liked the material but they weren't going to work for me.

I have several brands of boxer briefs including exofficio, ems, duo-fold, and UA and these MH Featherweight's are by far the most comfortable and best wicking that I own. I have backpacked with them in Alaska, Red Rock Canyon, Grand Canyon and the Florida Trail and getting ready for Yellowstone/Grand Tetons this summer. The odor is much less than others and they dry much quicker. Can't miss!!!

Very comfortable. Smelled remarkably good despite sweating heavily and wearing multiple days.

I also purchased the Extend mid weight top and tights as well. as a set the work great. I snowshoed in the upper peninsula of michigan while wearing these and never took them off. we spent one night in sub-zero weather and they kept me warm and dry. i went to bed a little wet and they dried overnight (by my body heat) Nice and soft, and very confortable

so comfortable, not as odor resistant as wool but much faster drying and lighter feeling. also at 2oz super light for ultra light outdoor activities.

Very comfortable, an excellent first layer product.

I really like the comfort and wicking of these featherweight layer. I wear them all the time in the spring, summer and fall when doing anything active. They work great for hiking, trail running, camping, etc. Highly recommended.