I bought these gloves as "back up" summer gloves and they are holding up well after riding most of the summer with them.
The fit was a little tight on my right thumb, but things have "relaxed" a bit and they fit pretty good now. I think the larger size would have been way too large.
They offer nice ventilation and the palms are not so loose/thick that they bunch up or get uncomfortable. I bought these on a "deal of the day" and they are definitely worth the price I paid.
I originally ordered these in L and they were very tight, returned and went up to the XL and they are slim in the fingers and a tad long but overall the fit is comfortable. I did a 2,000 mile trip and used these exclusively without issue. The liner in the gloves is plush but doesn't stick to your hands like others do. Being able to use the phone without taking the gloves off is a nice touch and I wish more gloves had that feature.
Only complaint is the durability. The Velcro strap that goes across the wrist on the left glove has its stitching coming undone. You can't pull the Velcro apart from each other without further pulling the stitching apart from the glove.
This is the 5th pair of AGV Mayhem Gloves I've bought since 2008. They fit me a little small (most gloves I'm a medium) so I buy a large size. Typically last about a summer and a half. I must have long-ish thumbs because they have all worn out at the tip of the thumb first. Still, the comfort is good and the plastic shield across the knuckles deflects road debris. Sometimes I can find them on sale here.
They aren't bad gloves for the price. They have good airflow and wick pretty good. Like the strength for the price, my biggest issue with them is for long riding there is no padding on the inside of the palm where the thumb is and it makes my clutch hand sore.
You get a lot of bang for the buck with the SG3. Kangaroo, superfabric, Kevlar, scaphoid protection. Top notch materials, nice design, good snug fit. I am normally an XL, and these XLs are snug but breaking in. I gave 3 stars on durability because I have only ridden a couple rides with these. I like the look of the red/white colorway.