Ingenious product, as most sea to summit's. Nice and cool for some luxury in your gear.
It's tops are quite unstable and unless the food in it is solid this may be an issue. Having and the x mug, which doesn't have a solid bottom but it has a solid rim ring, I find it much more stable and secure. If they added to the x bowl a solid ring in the rim it would be great.
This review was written in the old system and had content requirements that are different than reviews written today.