These Ortlieb 7 Litre capacity dry bags are possibly the best solution and size for use with the Salsa Anything Cages. ( the Salsa bags are considerably smaller in capacity and not as rugged  ) 

Unlike many regular dry bags these are super rugged and have waxy like feel. They are 100% waterproof and we’ve been using them personally for over 4 years without any faults, they are perfect for protecting fragile clothes or food ! 

These bags solve the age old problem of how to store a tent or Bivi bag on the bike, while keeping it from being damaged while riding through Singletrack, brambles and overgrown bridal ways. 

They are also ideal for carrying cooking pots gas canisters / stoves and food or clothes or dirty laundry, these dry bags really are the perfect solution.

We only stock these 7 litre bags to compliment the Salsa cages and our Fork clamp kits.