Answered: Vex Logo T-shirts

My team and I are planning on using the VEX and Gateway name on our t-shirts to celebrate the success of our gateway season. Before we do this, do we require permission from VEX to do so, and if so, where would we get this?

Link to the planned design: http://www.customink.com/designs/shirt4/fju0-000q-wt7c/hotlink?pc=HL-46120&cm_mmc=hotlink--2--Body_txt-_-button1

This is perfectly acceptable, thanks for checking!