This last week my friend Yuiko was here in Prague for 4 days. When touring the city we went to a store called Paul Frank, although I think only the 1st floor has things from Paul Frank, the downstairs I don't think is P.F., had a loooott of studded clothing, jeans, jackets, boots, sneakers bla bla bla. And as you can see from the sole of these wellies they say Decathlon (Made in Portugal). I've been to Decathlon in Portugal, and it's mostly sport stuff, so I guess in this case "someone" imported these wellies from Portugal and studded them.
So anyways, Yuiko after much (or not so much) debating, of either to buy it or not, she finally bought them, and honestly I'm thinking of buying them aswell >.< aaaahhhhhh! There are other wellies with different studs at the shop. You can pick silver or golden, or rounded bubble shaped, or like these one from the picture.