Welcome to the Chum Bucket! Don this awesome Plankton Sinister Face t-shirt and steal the Krabby Patty Secret Formula and rule Bikini Bottom. Great for parties, don't let this t-shirt escape your grasp and pick up yours today! This standard fit adult t-shirt is Plankton green, and is made of 100% cotton. Be sure to check out our Size Chart to get an idea of the average size and dimensions of this Plankton Sinister Face t-shirt style. Check back often for some of our SpongeBob SquarePants clothing and other SpongeBob merchandise at great prices only at Animation Shops.