My baby is 6 months old and weight is 6.5 kg what size diaper is best? I am using firsthug medium size though it's leaking always so is it diaper issue or size i am not understanding.. please help

A. I think it is going to be small right now you should know this thing that every diaper brand that you purchased every diaper packet has a referral range of weight which is going to be suitable for the age suppose it is saying 5 to 8 kg it is going to be small everything is mentioned on the packet so see clearly and carefully before you buy