Portable Oxygen Tank Backpack O2 Cylinder Carrying Bag Oxygen Tank Holder for Size M2, M4, ML6, M9, M6, MD（Black）

So far seems to very good bag. And it holds the middle size tank with the regulator in view of the clear window.

I can use it to put the oxygen bottles in there and still have room for other things. I like the slim design. My family does a lot of scout camping and will be able to use this a lot.

I bought this for my husband.He carries it purdy much everywhere.There is one small issue.Where the tank sets against the back of the bag after being strapped and the bag lays against the spine.My husband suggested that there should be more cushioning there to keep from pressing and rubbing the spinal cord.He also mentioned maybe the feet being a bit taller.Other than that he seems to really like it.

Looks good but a little too big, needs to be shorter to be more discreet.

Very comfortable and fits tanks well

Love this back pack for my oxygen and very durable and waterproof. And not heavy. Worth $$$ every dollar

1 month of use has a hole from where the back pack strap goes (see pictures)The bag has pegs to set up on and it doesnt just falls over and to top it off the pocket zipper broke off. The grommets for the air hose only has 2 that can really be used the other 2 are for inside the pocket. The velcro sticks to everything inside the bag but wont keep the oxygen bottle tight in the bag. BIG WASTE OF MONEY. If i could have put 0 stars or negative 5 stars thats what they would have.

It's a little taller than myoxygen tank but it'll work.