Box containing Kotex Panti brief style

Box containing Kotex Panti brief style, 100% stretch nylon lace, fits hip sizes 32-42, "with exclusive "No-Slip" Features", Kimberley-Clark, USA, 1975-1977

Before self-adhesive menstrual pads entered the market in the early 1970s, disposable pads had to be secured between the user’s legs with an elastic belt worn around the waist. As well as being uncomfortable, these garments were prone to slipping and twisting.

By the 1960s, menstruators had another option: washable period underwear with inbuilt mechanisms to hold a pad in place. The Kotex Panti was available in a range of styles and used a front fastener and elastic loop to secure a napkin.

As well as comfort, security and discretion, the reverse of the pack emphasises the product’s fashionable appearance: “Racy, lacy Kotex Panti. Pretty neat way to have the full protection of a Kotex napkin – without any giveaway signs!”

Fully reusable 'period pants' have undergone a resurgence in popularity since the mid-2010s, driven by consumers seeking a more comfortable and environmentally friendly alternative to disposable pads and tampons.