Reesie is eventually going to be about 6-7lbs and I got the size 3. He is 4lbs(ish) right now and with a Target t-shirt on, he fits into the 3 on the 2nd hole. I'm thinking when he is full grown, he will fit into one of the middle to end holes. If all fails, Snick can use it
. Best Harness ever BTW!!!! He never coughs while he wears it and tugs!!!!!
Viv