Best sports & outdoors underwear according to redditors

I've got a ton of budget best bang for the buck gear, but one place you absolutely should not skimp on is socks. Buy 2-3 pair of SmartWool Expedition weight socks. It's like wearing slippers inside your boots.
Socks
Here's some more of the cheap (mostly) gear that I purchased and am still happy with. This includes some revisions I've made after a somewhat miserable trip to Yosemite. I am a freak for reading reviews and digging for the best price.
$8 Stove
$8 Mug
$16 underwear... okay, this is almost as important as socks!
$29 Solar charger, or DIY
$85 Water filter, didn't want to skimp here although water tabs are doable
$9 550 paracord
$14 multitool - use a small cheap knife to 'cut' costs
$28 titanium Anodized Aluminum pot
$9 Tarp Couldn't find the link, but it's at WalMart in their camping section, by Outdoor Products.
$9 titanium spork
$45 hammock - you can get cheaper on campmor, but this one caught my eye at REI
$16 hammock suspension - you can get cheaper by DIY
$14 Compass
Sierra Trading Post has Comfortrel longjohns for $17/top or bottom - feels cheap, but effective.
$24 15 degree mummy bag IMO the next best thing for the money is The Cat's Meow at ~$90.
$22 tent - small, decent weight, cheap, hard to find. Not sure if I trust in rain, but worked great for five days of decent weather and 30 degree nights. Dumped this for the hammock setup due to weight and size. (but it's not that heavy or big)


In addition, I'll be switching to the $45 54litre pack from Costco.
GoLite has some crazy cheap light backpacks, but they don't seem to do well for loads heavier than ~25 pounds, which you probably won't hit on a budget.
$10 tab stove - haven't used, gonna try this out soon

Wal Mart has been seriously stepping up their backpacking game in the last year or so. Take a look their. A lot of the products are decent quality at crazy good prices.
Thread

If you can get past the gaudy label and the expensive price tag Under Armour makes some very nice boxer briefs that are extremely comfortable. Advertised as the most important article of clothing you'll put on all day, Under Armour's Boxerjocks make any athletic activity easier. Slap on a pair of these babies and you'll be hiking farther, running faster, and just plain enjoying outdoor life even more. Seriously, these things eliminate almost all the friction between your legs and wick away moisture quicker than any pair of undergarments I've ever owned. I was skeptical at first but then I went out and bought a pair and finally saw what people were talking about. Now I own five.

Read the reviews.

One quick thing you can do is reduce your amount of underwear. Not sure on your gender, but I got this trip from a blog advertiser traveller guy back in 2009 and have only had 3 pairs of underwear ever since. https://www.amazon.com/dp/B00DZLPBKA One inconvenient thing is drying the underwear, it takes about 12 hours so a tad longer than sleep-to-wake.

edit: also ditch all 4 things in other:
plaster roll + scissors
strongish string
needle and thread
spoon/fork