i own a motorcycle pressure suit but was underwhelmed with the build quality, especially for $200it is also a prick to put on and off, so i barely wear it unless going to the track i am also unaware if these are built to any standard On TV one night i saw a show featuring an equestrian protective vest, and thought that would be good for the bike! i purchased the 'dublin supraflex body protector', retail was $200 (the vest is not recommended for use on motorcycles) obviously a vest protects the rib cage, the back of the vest extends fairly low, almost to the tailbone. the inner shoulders are protected and there is padding on the side of the torso also. the unit is constructed of a medium density foam padding about 15 mm thick, the foam is especially made to distribute an impact force over the maximum surface area. the vest is made to the 'BETA 3' standard; 'horse rider body and shoulder protector standard level 3' is on a tag affixed to the vest. (3 is the best protection) it fits under a jacket, it is comfortable and not restrictive at all unless turning my head to look behind, it is easy and fast to put on and take off, so i will wear it every time i ride there are thinner less restrictive versions available too. i am happy with my purchase and hope i never find out if it works or not! "First worn by bull riding and bronc riding superstar Cody Lambert in the early 1990’s, the protective vest now worn by many bull riders, bronc riders, clowns, and bull fighters is credited with saving countless men and women from serious injury in the rodeo arena. The protective vest offers protection from direct trauma (such as when a contestant is stomped on by a bull or bronc or hit with a horn) by absorbing shock and dissipating an otherwise crushing blow over a larger area."