Amy Rose is the star of this white water bottle.
This is another of those Sega Shop 'we stamp a design onto a generic thing' type of items. You can see 2 more above that are just like it. This one has a neoclassic Amy Rose line art on one side. This has her walking & seemingly presenting something? She has one hand up & out as if gesturing to something behind her cheefully. It's a cute art, and different enough from her usual poses.
The other side of the bottle uses a very geometric/shaded block font to spell out "AMY", but her face is superimposed / replaces over the "A". Because it's a forward-facing-face (like forward Sonic) the spikes/bangs kind-of make an "A" shape a little bit. The bottle is otherwise plain/white with the karabiner clip & ring top. This should be about 18 dollars in the Sega Shop in 2019.