I got mine out of the drawer for the first time this year on Saturday and was reminded at how good they are. Very slim – the lower leg is spray on, there’s enough room in the knees for a slim knee pad but the waist is tight, not uncomfortably so as they’re very stretchy but they’re obviously building stuff for racing snake type builds rather than short and more stocky.
+1
Although they are very stretchy, I wear 36″ jeans and can just about get away with mine in XL, although I really should go up a size I think. Most decathlon stuff is sized for “real world serious cyclists”. It’s not Castelli, but it’s more height to weight proportionate than exclusively MTB brands.
They’re more like super thick Roubaix tights with strategic reinforcement pads on the outside and just enough bagginess in the front of the upper half to give them a ‘trouser’ silhouette.