north face backpack waist strap Nomatic Straps lined pocket holds smaller essentials The North Face Chest Strap

You stated that the Billingham Hadley is not waterproof, this is not the case, unless it is dunked underwater, it IS very much waterproof I can say this after years of experience with Billingham bags

ARROWHEAD LINE GUIDE - The Arrowhead line guide works to increase the fluidity of line release, while a micro click cast control gives anglers the ability to make fine adjustments and accommodate a wide range of bait sizes and weights

It has great suspension and support for your hips. The Osprey Stratos is actually a men's backpack, but with so many adjustable straps throughout, it's easy to tailor this pack to a smaller frame

85-100+: Deep sea fishing may help with gains

You can first fold down the edges of the bottom part for a nice finishing