The material is durable, easy to pack for trips

Works very well and is made of very durable material.

the straps are a rubbery material with a softer material inside

Great waterproof bag- durable material and unique pattern (I got the

Thick material and the straps are nice.

The material is very thick and hard to work with

Sturdy thick material.

Very thick/sturdy material

I look forward to taking this to my trip to Puerto Vallarta tomorrow and the durability feels almost like, or the material, feels like rafting material in a really good shtick plastic vinyl type almost like rafting material

Great quality material and just as advertised

The material looks sturdy and not easily torn

Durable material, easy to use, and loved that it came with a locking phone case

The water bag's material looks very good and solid

Material is fabulous

Material seems durable to the touch

I took it on the dive boat as well as on a boat tour.

I took it on the dive boat as well as on a boat tour.

I highly recommend the 20 L for my personal use but I can definitely fit at least a beach towel a bathing suit, dress, or your extra clothes, and maybe some flip-flops

20 L definitely is perfect, for sized backpack sizing wise