We stock TapouT short sleeve and tomorrow we expect the brand new Sinister long sleeve rash guards to arrive. These are the very latest Sinister designs and aren't even on their website yet. Also these new Siniser RGs are custom made for grappling (most RGs are just mass produced surfing RGs re-branded for MMA). Which means that the way the panels are cut and stitched together makes sure that there are no seems in areas of high stress, such as under the arms or on the side of the body, etc. No other RG on the market is made this way. This fella has tested them and apparently he knows a thing or two about MMA.