Good back but wish it came with the straps to attach to backpack

I have purchased this before traveling which has allowed me to pack both lightly and also allow me to utilize it for flexibility. I used it both for urban and nature and it helps with a lot of space if you are running low. I even paired it with my osprey raptor which helps me pack light for hikes but also have extra room for longer days and important items.

Despite using it about a dozen times, I enjoy using it for those reasons. Though there's things I am very disappointed in. Boundary has always been recognized since day one for their quality and use of material and innovative solutions to looking minimal, functional and durable. Though i found it to be a minimal, and functional - I did not find this particular product to be durable despite the claims.

The EXM Port pack for me start to wear and tear despite this item being in the rain a handful of times (3-4 times), the clip that attaches the sides together opens up and doesnt lock properly at times, finding my bag falling to one side during hikes and cycling.

I would only recommend this if the durability is fixed. Otherwise, I do not see this as a long-term investment for the pack as it wears too quickly.

The construction seems decent but as of August 2022, the EXM Port is *NOT* made of Hypalon and the pictures are misleading. Only testing will say whether or not the other material is as good but it does collect lint like mad, so not too happy about that because Hypalon does not catch as much lint

The attachment/pouch says it provides an extra 6 liters of space, and it does just that. However, the placement of the pouch when connected to the prima pack requires you to unlatch it if you want to retrieve anything from the pouch because it has a top-loading zipper entrance. A little awkward, but definitely doable!

Bought last week, already used extensively. Perfect as a bag for shoes, attached under my Prima System bag.