The item itself is typical Alpinestars gear. I'm 5'9" 160 lbs. and a small just fits with an undershirt-barely. Works really well with my Areostitch one-piece. The fabric is nice and stretchy so there is nothing hanging loose. Durability gets a 3 because its new but I have no doubt it will last for years.
kevin - April 23, 2013
Good spine protection
The only thing about the vest that I did not like is that it is to long. I am 6'3" so I dont say that often but the vest has to be tucked into my my pants before I can zip together my track suit.
Ryan - April 20, 2012
Alpinestars Bionic SP Vest
I’m 5'6" 135lbs, got the small, it fits good inside my suit and breathes great.