A co-worker of mine at Vertical Ventures Rock Climbing Gym, Tampa FL, ordered this custom messenger bag. It’s made from super-durable Sunbrella fabric (marine grade canvas) that we picked up from sail shops here in the Tampa Bay area.
If features a large front pocket on the flap, specifically to fit guide books for rock climbing. The sides also have loops for clipping climbing chalk, shoes, water bottle, etc.
The interior also has large split pockets.
This bag was sold for $55.