US$ 25.70
mens lowrider bicycle 26 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
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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