Sorry, I don't know because I never buy one from Target. But I suggest you to call the store and ask the client. The phone number can be known by the simple click on the internet. Or else, you can go to their online store and have a search on the price of the speedo goggles. Wish you good luck.
In fact, i never bought speedo goggles cost at target. But i just search it online at target.com. It seems it is very cheap to buy speedo goggles at target. They prices are different for each type of goggles. But they are ranges from $6.99 to $12.99. It seems it is worthy to have a try. Hope this help you.