Which brand if sippy cups r good that dont spill

Started him at 6 months and he's been drinks from straw cups ever since. He is completely off of bottles and he's 13 months.

my daughter is 5 months and I've given her one a couple of time just to play with after she got a hold of her sisters and tried to turn it up.

Ya, not going to lie my son loved his bottle until about 12 months and then switched to sippy cup during day and if he'd wake up at night I'd let him have the bottle for a sec. Not the best but he was so attached to it.

Well some hold a bottle before that my son did at 3 months but I took all bottles away at 6 months

When they're able to hold there bottle on there own with no problem so yea 5/6 months .

6 months

6 months