SO GOOD... The 2.5l bladder supplied with the Viper is Osprey’s own and its added capacity opens the pack up to longer stints in the saddle. The exterior pocket is fairly deep, with enough room for a mini floor pump.As with all Osprey packs we’ve tried, the straps are comfy and well ventilated.We love the clever bungee helmet hook.
NO GOOD... When full, the bladder consumes pretty much all the internal space. Though the fit is good, the conventional straps can’t quite match the security of a harness design.
Price 97$