Whats with the Postage?

So i wanted to buy a shirt, because theyre on sale because of comic-con, and theyre $15. Add in shipping to Australia, and you pay $38 for a single shirt. How much does it cost to ship a T-SHIRT?!?!?!?!?! I buy video games and controllers off ebay from people in the UK and the postage is less than that. Im pretty sure my xbox controller weighs more than a shirt

That’s why I don’t use the Waypoint store. Every time the postage is 60 euro’s for me