Here is the dress code taken from the encore website:

The following items are considered unacceptable:

Baseball Caps
Clothing with Offensive Designs / Fight Brands
All Singlets
Soiled or Heavily Worn T-Shirt
Branded Sport Shorts & Boardies
Athletic & Gym Attire
Cut-Off Fraid Denim
Track Pants & Sweatpants
Torn or Ripped Pants
Heavily worn or damaged sneakers
Thongs, Crocs & Sport Slides
Fancy dress (exemptions may apply)
Offensive Face or Neck Tattoos