Folds down flat enough to slide into my jacket pocket, and it pops right back into a bowl at the park. I keep one in the car now just in case.
Joseph R.★★★★★
Tossed this in my backpack for a weekend hike and barely noticed the weight since it collapses so thin. At the summit I popped it open, filled it from my bottle, and my dog drank without the bowl sliding around on the rock.
Ellie N.★★★★☆
Tossed this in my hiking pack and barely noticed the weight, since it collapses to under half an inch. The silicone grips slippery rock okay, though I wish the rim were a touch stiffer when it's full of water.