Vaping devices that look like hoodies, watches, phone cases, and USB drives are just some of the ways that teens are disguising their vape use from parents and teachers.

Meet the vaping hoodie. This high school fashion mainstay — defined by a hood with drawstrings — is now available as a vaping device, ready to deliver a puff of nicotine (or marijuana) anywhere, anytime. Including in the classroom.

Some schools have banned flash drives in an effort to keep vaping devices off campuses. But new stealth devices offer ways around these prohibitions.