Hi Paul, I have the Mini Trekker AW and I can't speak too highly of it. In mine I carry, 20d with battery grip Canon 70-200 f4 USM attached, the following Sigma's 10-20, 105 macro and 28-300 f3.5-6.3, Canon Speedlight 580EX, off camera flash cord, Canon remote release, 2 spare camera batteries, pack of 12 AA's for flashgun, hotshoe spirit level, spare Manfrotto quick release plate, UV and polarisers in 4 sizes, lens brush, Gorillapod SLR, lens cloths, rocket blower, 2x AA battery magazines for battery grip and Manfrotto 055cl strapped to the outside. Even fully laden is it so comfortable to wear. Hope this helps you.
John
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