This is the best backpack I've used. Its not cheap or even cheaper than your other options tho. Got the messenger large which really is quite big when extended. Straps and walkie ad ons available etc. Carry loads really nicely but the welcro on roll top isn't good for many months, easy to replace tho.
Small: $225
(16”H x 13”W x 6”D, roll extends an additional 10"; 3lb 12oz; 20.45L)
Medium: $265
(17”H x 14”W x 8”D, roll extends an additional 10"; 4lb 8oz; 31.25L)
Large: $295
(18”H x 15”W x 10”D, roll extends an additional 11"; 5lb 8oz; 44.25L)
Messenger Large: $375 (Comes standard with the side-access pocket.)
(20"H x 15"W x 11"D, roll extends an additional 11"; 6lb 2oz; 54L)
This is the best backpack I've used. Its not cheap or even cheaper than your other options tho. Got the messenger large which really is quite big when extended. Straps and walkie ad ons available etc. Carry loads really nicely but the welcro on roll top isn't good for many months, easy to replace tho.
Small: $225
(16”H x 13”W x 6”D, roll extends an additional 10"; 3lb 12oz; 20.45L)
Medium: $265
(17”H x 14”W x 8”D, roll extends an additional 10"; 4lb 8oz; 31.25L)
Large: $295
(18”H x 15”W x 10”D, roll extends an additional 11"; 5lb 8oz; 44.25L)
Messenger Large: $375 (Comes standard with the side-access pocket.)
(20"H x 15"W x 11"D, roll extends an additional 11"; 6lb 2oz; 54L)
http://www.freightbags.com/collections/store/products/rolltop-black-2