The first line of defense against spiked drinks is a good drink cover for your beverage. These reusable latex covers fit most glass sizes. Simply stretch it over your beverage. There is a hole for your straw. Discreet design, doesn’t scream out “Anti-Spike!”. You can pass it off as a protection against spills.
Fits glasses sized: This cover works very well with glasses up to 3.5" in diameter, which covers almost all drink glasses except for those used for margaritas and martinis.
