Rub For Luck Boxer Shorts. These green boxers feature lucky shamrocks with the motto "rub for luck" on it. Add a little shock factor to your underwear! These Awesome novelty boxer shorts are sure to turn heads and get a giggle out of who ever sees them. each pair of our novelty boxers are made out off 100% soft cotton for a cool, comfortable feel all day. The sturdy flex fit style waist band features fuzzy smooth inner lining to your underwear fit great and feel even better! These boxer shorts feature a front button fly for easy access. Each pair of these boxer shorts feature premium quality prints in vivid, eye catching colors.