Looking for some. The VT variety (tight fit).
Something similar to the Amatuer Shooto shorts:
http://www.bodymaker.jp/shopping/detail.cgi?KIN=&LOT=STSP
Check at http://www.ultimatesambo.com and http://www.ussambo.com.
If you wanna save a couple of bucks I sell Sambo shorts, but not reversibles. info@clubkozak.com