I got a 5-pack of this brand of underwear (size L). The fit in the legs, seat, and waistband are excellent. But, I've had splits develop in the crotch of two pairs, which tells me the stitching is a bit subpar, and this was only after wearing them about 5 or 6 times.

First off let me start by saying that I'm a rather large man and whenever I buy these kind of performance underwear the dont tend to last they usually pop a seam in the crotch or the waistband. I worklong hours in a factory so I'm always sweating and cannot wear cotton briefs or I will chaffe so I decided that I would give these a try that was 3 months ago and they are holding up perfectly the material is not showing any wear at any of the seams, they are wicking material so they keep the boys dry and they fit great, they dont ride up even after wearing them and washing them ove the last 3 months, I will be purchasing these again in the future if they ever wear out. This is a great product if your looking for underwear abit pricey but you get 5 pair and if you price it out against the other brands its one helluva deal.

Awesome underwear, I guarantee you will never be more comfortable. I am 5'8, 175lbs and purchased a large (medium would have worked but glad I went with large for comfort) I would however advise to use these bags when washing them to make sure you do not ruin them

STARUBY Mesh Laundry Bags 6-Pack Medium 16 x 12 Inch Laundry Wash Bag Colorful Zipper for Delicates, Blouse, Hosiery, Stocking, Underwear, Bra Lingerie, Sweater, Travel Storage Bag https://www.amazon.com/dp/B07HMX6YSV/ref=cm_sw_r_cp_api_glt_fabc_G9Z7CCG1YD4SPY7CDB03?_encoding=UTF8&psc=1

My husband saud I did better than he could've. He doesn't take risks when it comes to comfort,so I took a risk and poured through tons of reviews. Turns out LOTS of women chose(CHOSE WELL:)and most were definitely happy. Mine is hooked. As far as the few reviews mentioning fraying or them being destroyed after one wash? They dare super light,sexy,silky and they breath.....ladies use "garments bags" on gentle for such things;) WALLAH.......zero issues. First thing I told him was "don't you dare" wash these unless it's in my lingerie washing bags. A tiny bit of Velcro unnoticed in a load of laundry or anything else that would stick and you'll fray them. Trust me! Robotic engineer and he works in 20 degrees hotter inside than outside all summer. They are holding up just perfect. Not even one tiny thread loose,so far! And did I say SEXY? Sooo much better than thick spandex or sweltering nylon/polyester blends. Fans for life!!

These are very soft and comfortable but I was not sure what size to get even after looking at dozens of reviews and the sizing chart, so I'll tell you about me and what size worked... I'm 58, 6', 175 lbs, waist 31 and thighs 25... I've been running and working out for 30 years and I have big thighs... Initially, I ordered XL after looking at the sizing chart they give and reading a lot of reviews, but they were way bigger than I wanted... I was looking for something to wear when running and working out that kept things in place while not being too restrictive... The XL's fit fine in the waist and legs but the pouch they have for your junk did not keep me in place so I returned and got M... I was concerned the M might be too small in the legs but they ended up being perfect... The material is super stretchy so it fit my large quads fine and the waist was a good fit also... But most importantly for me, they were much tighter in the junk pouch so they keep me in place and I don't have to constantly rearrange things... I read a few reviews from guys with "massive" manhoods who had to go a size larger because they were too restrictive... For me, I'm an average guy downstairs... lol Not going to win any size contests but it gets the job done so I'm not complaining... I guess it depends on what you are going to use them for... I wear boxers in my Dockers for every day so I'm a loose fit kind of guy and the XL's would have worked fine if that was my application... But as an athletic supporter, the M was perfect... I did a 10-mile run today and they were so comfortable I never even gave them a seconds thought... I hope you find this helpful in deciding what size to get...