"Silent But Deadly" best describes a poisonous viper, hidden in the grass, that suddenly strikes out at its victim. These Lazy One boxer shorts use a humorous twist on this phrase. The boxer shorts have a picture of a grinning diamond back rattler on the seat of the shorts. The snake is releasing a flatulent gas and the caption reads, "Silent But Deadly". These 100% cotton knit boxer shorts have a button fly and a fabric covered elastic waistband. The boxer shorts are machine washable, with a relaxed fit, and are perfect for relaxing or lounging.