These are solid bib shorts, well-made, low profile and comfortable. Sizing: I am 5'8", 150 lbs, 31" waist, and I wear Large Castelli bibs and Medium Castelli jerseys. The Large in these shorts is very snug on me, and an XL probably would have fit too. That said, they're very comfortable on the bike, and the chamois is excellent. The fabric is a bit stiff compared to other Castelli shorts I own, but they feel like they'll last forever. I like the minimal branding, too.
The chamois on these are the perfect thickness. Not too thick that makes you move around and not too thin to make a long ride difficult. The chamois is also so good that I only need chamois cream on very long rides. The silicone grippers are also fantastic and never slip. I'm 6' 190 and these are XL which fit perfectly. Everything about these are great.
I have been riding Castelli bibs for the last 8 years, and I am extremely happy of that last 2 I ordered and used for Unbound gravel.
Very comfortable, maybe on the heavy side but no butt pain after 14h on the bike.
5; 9", 32 waist, I ordered the large and fit perfectly. Sizing up led to a comfortable ride with good compression and padding. Good wicking and overall comfort. About 150 miles ridden in them including a 50miler, and no complaints at all re comfort.
Before picking up my first pair of Castelli bibs, I mainly wore PZ shorts. The Competizione bibs were a night and day improvement over the PZ chamois and I was never looking back. When I first got the Endurance bibs, I was a little disappointed comparing them to the Competiziones. The material is thinner with no texture and the grippers did not feel as robust. However, the chamois was clearly different so I decided to give them a try. Boy was I wrong with expectations. First off, the chamois is much improved which I did not know was even possible. I literally do not even know the bike is there. Secondly, the grippers and material somehow offer more support while breathing better at the same time. These are my new go to bibs for longer rides and literally cannot wait to put them on.
The quality is excellent, and each part of the fabric is perfectly contoured to fit. The chamois is a step up from the one in my older pair of Castelli bibs. It's super light and minimalist.
Castelli sizing, however, makes no sense. I wear a large in everything, so I ordered an XL, knowing Castelli runs small. My other set of Castelli bibs is XL. I tried these on and could barely squeeze into them, so I had to exchange them for XXL. It's hard to buy Castelli because the sizing isn't consistent.
I already had the Endurance 2 and as far as I can tell the Endurance 3 is the same. Fits perfectly but there's not a lot of padding in the seat. Not really a problem for me - just comparing it to other shorts I have. Workmanship is excellent.
Very nicely made bibs, fabric feels good, and most importantly the chamois is very comfortable for longer rides. My only gripe is the leg grippers can make it hard to adjust the fit if your legs are on the thicker side. Sizing is as expected from Castelli, I ordered 2XL and I am 6'3" 220. Compared to other bibs, this feels a bit tight on the length, but I didn't think 3XL would solve that problem.