like patagonia black hole duffel Noble Grey 55L Patagonia Black Hole Duffel 55

These are especially useful on coolers that lack waterproof zippers, as they allow you to lift and maneuver the bag into a vehicle or onto a boat while keeping it upright to prevent leaks

The size expands and contracts by 20-40 liters

Either way, we think there is a good reason that belt bags are so popular, and theyre both great waist bags

We also wish, as mentioned above, that the bladder insertion point was a bit larger to make it easier to throw in some water and go

From a multifunctional pick with interchangeable straps to one that doubles as a cooler for your picnic, we've rounded up the cutest mini backpacks to shop this summer