cheukwing媽咪,
Zoggs has goggles for younger kids. My son started to use goggles when he was 2 years old. They have different models (Optima, Flipper etc.) for all ages and the price is relatively lower than Speedo,GOMA, Arena & Nikko. I actually rang up their distributor and spoke to someone who gave proper advice as to the appropriate model for my son. Don't rely on the sales/staff. They probably don't know much about the products. If goggles is new to your child, try to choose those with 100% silicone seal gaskets which are more comfortable to put on.
I bought mine in Seiyu but in case you don't live near Shatin, they are available in a lot of stores. Try to call their distributor. They should be able to tell you.CLICK HERE