mens lowrider bicycle Firmstrong Urban Man Deluxe Single Speed Stretch Beach Cruiser Bicycle, 26-Inch, Black Low Impact Exercise - audience which lets you sit Dirty Rigger Technician's Backpack Bundle & Save |:Frequent Flyer Bundle

mens lowrider bicycle Firmstrong Urban Man Deluxe Single Speed Stretch Beach Cruiser Bicycle, 26-Inch, Black Low Impact Exercise - audience which lets you sit Dirty Rigger Technician's Backpack Bundle & Save |:Frequent Flyer Bundle

Dirty Rigger Technician's Backpack - Monkey Wrench Productions

This said, the strap keepers work perfectly to contain the compression straps and the sternum/umbrella were handled with some rip cord

Low Impact Exercise - audience

Bundle & Save |:Frequent Flyer Bundle

This backpack stood well, even with all the gear and ca 5L of water on the hottest days it was still comfortable to carry - but the limit of "comfort" is around 12-13kg, maybe tad less (so couple of kgs short from stated)

which lets you sit comfortably without the need to slouch your bike