A bra in bright cherry red—one of the shades an expert recommended—did anything but disappear behind my white tee. Photo: Zoe Vanderweide Armed with this new information, I went shopping. I ...

TikTok/liz.zemm “I was today years old when I found out you can wear red undies under white pants,” the 20-year-old captioned the clip, which racked up more than 43,000 views.