I loved this bag because of how the yoga mat attached to thw bottom and the fabric style. However the materials and sewing were not the greatest. The back pack strap ripped away at the backpack seam / strap interface where the stap connects to the bag making it essentially unusable as a backpack.
I purchased this because I thought it could double as a yoga bag and a commuter bag. However, the "laptop sleeve" is not appropriate for a laptop. It's not deep enough to fit a laptop (it only goes half-way down the back of the bag) and the "sleeve" pocket material is super thin, without any padding or stretch--it wouldn't even use it to hold a tablet.
I recently bought the yoga mat backpack and instant felt discomfort on my shoulders. I had only my light travel mat at water bottle in the pack, went for a walk, and had chaffing and redness on my shoulder. The quailty of materials is poor and caused pain. I've never had a backpack do this... I emailed the company and never got a reply. I want to return this backpack.
Vast improvement over the one I had and it fell apart in a month
I bought it carry beach towels or a picnic blanket (not always a yoga mat). Bottom straps are adjustable, so it works great. There is also space to hold quite a bit on the inside.