I have to respectfully disagree with the person who said these run very small (at least in the small/medium range). My measurements are 12" at largest point of my massive biceps, my wrists are 7". Right between small and medium.
I've owned these in medium and gave them away because they seemed a little loose for my taste and seemed to be a little baggy/wrinkled at times.
I now own them in small and they fit perfectly for what I want. You have to fiddle with them to get them on but they aren't tight but they aren't wrinkled either.
After trying several different bibs, I decided on these. The price appears reasonable, the chamois quality is comfortable and supportive, and the material is generally of good quality. The pockets are particularly convenient, with one on each side of the leg, and are ideal for carrying gels or power bars.
In my opinion, these are an excellent choice for gravel or road cycling.
For reference, I am 5'10" and weigh 172 lbs, and I ordered two pairs in a large size.
I bought these tights at an end of season sale and have only one 70 mile ride on them. Overall I like them. The chamois is fabulous; thick and contoured similar to my pro shorts, but orange. The fabric seems warm. Sizing is fine: I'm 6'4' 180 lbs and use a medium. The reason I'm questioning PI is they have done away with drawstrings, zipper leg openings, and the rubber sticky stuff to keep openings in place. The torso is a bit short. So I feel like my back is exposed when I bend over, which you do riding a bike. My solution is to pull up hard on the back, almost like a wedged. The PI tights and shorts from 6+ years ago were better styled, fit better and were better quality.
Have worn size L. bike shorts and tights for all my time, these tights were ordered as size L, and are branded as size L, but seem much tighter than ALL my collection ( 20? who knows? ) of bike shorts and tights. Also, no ankle zips.
do like the reflective strips, and they do seem well finished, but will try to exchange them for the
next size up ( tho I shudder to think of myself as a size XL ) OR re-gift them to smaller son ;- )
Not sure the pockets would be useful but would give them a try.