Runderwear Men's Briefs - Chafe-Free Running Underwear

Bought as a present for my (runner) husband - he loves Runderwear for its comfort but can't often afford it (16 quid for underwear?!?). FYI, he's got a 31 inch waist but likes wearing the medium as he prefers the comfort of such.Smiles all around :-)

Worn for most of a week-long cycle tour (just for the riding parts - changed to clean 'normal' underwear after the shower). Great for a recumbent cyclist, but don't risk if riding with a saddle - depite the 'no seam' headline there IS a seam between the legs. No problem on a laid-back bike, but it'll eat you alive if you're riding with your favourite Brookes.I simply didn't notice the pants when out riding worn under a pair of leggings.When they got a bit whiffy I rinse-washed them in the campsite laundry room - that helped and they dried overnight. They really needed a proper wash so I went on to my spare 'ordinary' pants and on the very first climb I noticed they were gettting damp & sweaty.(Sorry if that is a bit too 'stinky' a tail, but I wanted to put these through their paces)So yes, about to order another pair

These are a good alternative to commando or running shorts with a net. I've only tested them once or twice so far but they have held up to claims of no chaffing. Not a problem for me usually anyway, but nice that they're not introducing the problemI have a fairly stocky build with quite large diameter thighs, and like others found the room here to be a little restrictive. To be honest it wasn't really a problem whilst wearing them and only noticeable when you first put them on.Fabric is nice and stretchy, and thin enough to be breathable and flexible. The waistband is light with no seams or labels to rub.Am I a convert? Not quite, but I prefer shorts with build in brief to run in. If you run in your undies, these are pretty darn good!A friend of mine tipped me off about these. He (foolishly) is rather a marathon addict and swears by these for security and comfort.

These are basic polyamide briefs and in my opinion hugely overpriced. I mistakenly bought them instead of the merino ones from the same manufacturer. I'm rating them three stars because they are as described and very comfortable but they are thin, seamless and extremely stretchy so they offer practically no support. The "cup" basically yields under the weight of your bits.

These are okay but not for me overall. They are expensive and when they say seemless there are of course still seam stitches around the leg openings and this is where i tend to find issues with chafe. I wore them just around the house and they seem to run a little hotter than i expected. Glad I tried them but I wont be buying more even though they are well made.

I did not think a pair of pants would make such a difference, since buying these i have taken part in a number of long races and have not suffered once from chaffing. It has made those long runs a much more enjoyable experience.

Comfortable and very useful for running. However (and this is entirely my fault) if they are washed at too high a temperature they do lose elasticity and comfort. So read the label! I will be getting more in due course.

Should have got a size larger than usual. The snug fit detracts from its appeal to be anti-chafe, as tight briefs are worse than fitted trunks; regardless of seams. Thin nylon type material left me unconvinced of its "wicking" ability. Having said that, they felt and looked good