How Many Pairs of Period Underwear Do You Need?

Period pants work by absorbing menstrual blood. The quantity you need will depend on your menstrual flow and how often you wash.

Quantity Guide

We tend to find that a total of 5-7 pairs reusable period pants are enough for the average cycle. 

This would be 2 Night time pairs which offer higher absorbency to give protection for a good night's sleep.  Then 3-5 day time pairs of pants so you have enough to wash every other day and ensure that they dry in time for their next use.

How often should you change period pants?

Period underwear has higher absorbency than pads or tampon so you can wear period pants for longer. Some different styles can easily hold 3-4 tampons of blood. You can wear then for longer than cloth sanitary pads which mean that you need fewer pairs for a full cycle stash.  Depending on how heavy you bleed, how frequently you need to change into a fresh pair and how long period lasts will dictate how many you need in your own personal stash of period pants.

Frequently we find that you can wear period underwear for up to 6-8 hours which is often enough to get you through a school or work day without needing to change. You can often find on your first day / heavy flow days you need to change more frequently however period panties also come in super heavy absorbency to give you the option for less frequent changes. If you are just using your period underewar as a menstrual cup back up then you may be able to get away with wearing the same pair all day like normal underwear.