what it says:
“catalyst”

Product Details
   * 100% Natural Organic Cotton, 100% Sweatshop-Free
   * Fine jersey cotton, combed for softness and comfort
   * Stylish fit on virtually any body type (fits a little snug) - [view sizing chart]
   * High quality print & fabric to survive years of machine washings
   * Tagless (We screenprint our internal tags) for comfort against your skin