I'm looking at buying a waterproof backpack and wondering if any of you had any tips, advice, reviews of products.

I have had my eye on the 23l Loop TPU backpack, the Airflo 30L is a bit too big for a daypack for my usage

But has anyone had experience with the ATG (All Terrain Gear, local company as fa as I know) 20L pack? looks very nice and has a hydration bladder pouch which is a big selling point for me

Any other brands/models I should be looking at? It has to be waterproof, Preferably 15-25L, some d-rings and loops for zingers/tippet etc. Would be nice if a rod and/or tube can be attached and has place for a bladder. Not a huge budget so probably not Patagonia or Simms