Share This Page: PSD Underwear and In-Store Signing with Mike Miller The City Gear at Southland Mall will host an in-store signing with Memphis Grizzlies player Mike Miller Friday, June 6, at 7 p.m. Customers who purchase a pair of PSD Underwear will receive a free poster that they can have signed by Mike Miller, and they'll get the chance to take photos with the veteran Grizzlies player. PSD stands for Pant Saggin Dezign, and with fresh patterns and prints coming out all the time, you can wear your life all the time with PSD Underwear.