Tight fitting (not overly so), tall, and not too thick of a material make for a nice sock. I'm happy with these puppies.

I like these socks. Great look (white/black combo) but they feel a bit heavier than others (say Castelli's Rosso Corsa). Nice tight fit, but nothing crazy.

I like these socks. Great look (white/black combo) but they feel a bit heavier than others (say Castelli's Rosso Corsa). Nice tight fit, but nothing crazy.

They're socks. They fit great (tight and tall) and do the job in typical Castelli fashion. I like.

One of my favorite jerseys ever! Full zip, very tight, long aero sleeves, reflective bits, nice zipper. I'm tiny and wear and XXS jersey in custom Capo sizing, but this I wear and XS and it's great. Not restrictive at all. Terrific fitting and material feels nice. Light fabric, but durable as well. Sleeves are just compression (ie. no grippers) and it's a very nice feel. They're longer than normal sleeves, but it looks "cool" so thus I like it. Comfortable and well done. Winner.

It's a vest. No complaints. Perfect for San Diego winters (40s at the lowest) if you add jersey + base-layer. Looks nice, fit is pretty slim, doesn't bunch or flap in the wind. I dig it.

But regarding sizing, it is small. 69 inches and 130 lbs (size 29 waist) and it fits very well on me (size S). But no elastic around the bottom, just a bit on the back.

Combined with the Castelli Body Paint bibs, I wore this jersey during Furnace Creek 508 and never changed (34 hr, 500 mi in on kit...).Not a problem in the least. Breaths great. Nice sized pockets. Compression bands around the sleeves so movement is as it should be. Jersey is very tight all over, but not excessively so. I'm small-ish (5'9" @ 130lbs) and the S fits like a dream. Sure it may not be full-zip, but it doesn't matter. Only notice it when taking jersey off/on. With the material it never gets hot enough to warrant fully unzipping the jersey (but I've ridden it only in the upper 90s F).

I love these bibs. But as a warning they are very tight. I have custom Capo and wear XS bibs. These I wear an S and they are almost too tight. But compression is nice. No plastic grippers around the legs but they compression bands work well. Straps are superb. Reflective bits are smart and not found on other bibs. Did Furnace Creek 508 in one pair of these. No complaints. But haven't used them enough (ie. washed) to determine their durability. Just washing in the bag they come with and hoping for the best.

Nice jersey. Terrific construction. Aero and form-fitting w/o being restrictive. Would have kept it if it didn't have grippers in the arm. When putting the jersey on they clamp down in awkward places and just make for a weird feeling on the arms. When Castelli does away with those, this jersey will be the ultimate. Went for the Castelli Aero Race