All the cups I would recommend if you are transitioning your baby to a sippy cup. All of these will be mostly (maybe a couple of drops) spill proof if not fully spill proof! I did add cups for all ages as well.
Sections
3
Tumblers
Transition Cups
Sippy cups
Tumblers
Spill proof and great if your kid likes the tumbler style cups.
Reduce Vacuum Insulated Stainless Steel 2pk Coldee Mug with Lid and Spill-Proof Straw, Cornflower & Peachy Mint, 18 oz
If your kid is older and needs a good water bottle these are great and they always have so many colors!
HYDRO FLASK Kids Insulated Water Bottle
This is just a cute kids cup if you want to mix it up a bit.
Cow Tumbler for Kids, 12 oz Insulated Cup
If your kids are older these are great and , daughter loves to feel like she's a big girl.
Owala Kids 12 Oz Insulated Tumbler - Tan/Blue
If you're looking for an eco friendly option these are great. They have a ton of different color combos too!
Elk and Friends 10 oz Stainless Steel Cups
These Brumate cups are great. They don't spill and you can get matching ones with your kid. So they can feel like they have an adult cup too!
BrüMate Leap 12oz Kids Tumbler with Handle
Cute water bottle for kids. They have a ton of different patterns for boys and girls!
Simple Modern Kids Water Bottle 14oz - Chloe
Transition Cups
Great transition cup and you get 2 in a pack
Tommee Tippee Insulated Sportee Toddler Water Bottle with Handle, Girl — 12m+, 2ct
Doesn't spill, great transition cup and again comes with 2 cups