my girl started wearing body style 's underwear when she was around 1-2 months old. it is not too hard.. but I don't know it would be more troublsome or not in winter.
Thanks, SunngNSiu! I will go to 花園街 on Thur and hope I can the wool underwear. I don't mind the brand because babies just wear that for a short while only. I just need it is warm and the texture is not too bad.
I had a quick shopping there tonight and most shops are going to close.. so need to do there again.