I bought a new skate backpack and I absolutely love it. It’s designed for ice skates but works great for roller skates. The skates go into enclosed bags on the sides and the middle compartment is large enough to hold my wrist guards, knee pads, and an extra set of wheels. It also has a small zippered pouch inside where I put my tools and toe plugs/jam plugs (whichever isn’t on my skates). There’s no outside pouch to fit a water bottle, but I think it would also fit inside the main compartment. It’s way more ergonomic than the over-the-shoulder skate bag I was using. https://a.co/d/eHgQiH7