Wear to buy swimwear

Does anyone know any good places I can buy some swim wear in the Chiba/Tokyo area?

I'm looking for a pair of swim shorts in a large size (2L - 3L in Japanese size).

I've tried a few department stores but can't find any swim wear, and in sports stores I have only found speedos.

Any help would be greatly appreciated.

Have you tried Sports Authority?

Haven't been there in a while, but they used to carry western sizes.

http://www.sportsauthority.co.jp/

Whenever I need to buy off-season items, I look on-line.
http://esearch.rakuten.co.jp/rms/sd/esearch/vc?sv=2&sit...

Otherwise, where do you want to swim at? Pools and beaches that allow you to swim tend to have shops that sell swimwear, as well as airports that have flights going to tropical places.

Try the Oshmans sports stores- there is one just across the road from Harajuku station, and others in Shinjuku, Kichijoji etc.

Thanks for all the advice. Will definitely have to check out sports authority.

Since posting the question I actually found a pair on Amazon.co.jp which is really handy as they can deliver to a local combini (e.g. Lawsons) where you can pay cash on delivery.

Again thanks for all your help.

(BTW - I just realised I spelt 'where' wrong in the subject line - oops)