Preschool lunch and backpack

Ma

Hi everyone! My son (3yo) is going to preschool soon and I’m searching for a nice lunch box and a bento style leak-proof insert. I was looking at the “Bentgo” brand on Amazon, but open to other suggestions! Any other lunch supplies I’m missing? Maybe ice packs, water bottles, and a thermos for hot food? This is our first year of preschool and I’m so nervous!

I’m also looking for a cute durable backpack. Anything else I need? Thank you all!