my ONE fit kit with transparent background

Say Hello to FitKit®

Measure yourself in minutes with the MyONE® FitKit®! Quick and easy sizing at home.

Print Your Free FitKit®
fit kit instructions with blue background

Get Ready to Measure!

  1. Download & print the FitKit®.
  2. Check it. Place a credit or debit card on the printout to make sure it printed correctly.*
  3. Cut out the measuring tool. Letters are for length. Numbers are for girth.
  4. Get it up. Here's where a great magazine, movie, or helpful friend can come in handy.
  5. Follow the instructions on the PDF to get your Girth Number. The tightest Girth Number is 45 and the widest is 64.
  6. Follow the instructions to get your Length Letter. C is shortest and M is the longest.
  7. Combine your Girth Number and your Length Letter to get your FitCode, such as 45C or 55F. Then get a sample kit to try before you buy!
Print Your Free FitKit® Shop Now

*Bank card doesn’t fit? Your printer is probably scaling the image. Turn off “scaling” and make sure you’re printing at 100%! **Psssst. Your size code stays between us. It will not appear on any packaging.

Already have your measurements?

Easily convert your numbers to FitCode

Enter My Measurements

Don’t Have Time to Measure?

No worries! If you know your general size range, try our Quick Samplers to see where you might fit. Each Quick Sampler has 3 different sizes within a Snug, Classic or Wide range to try.

My ONE Snug Sampler packaging with blue and green design on a black background

Choose Snug If:

You find regular condoms too long and/or too loose. 

Shop Snug

My ONE Custom Fit and Classic Sampler condom packages on a black background

Choose Classic If:

You find regular condoms are a pretty good fit, but you want to upgrade to a perfect length and width.

Shop Classic

My ONE Wide Sampler packaging with three sizes of condoms on a black background

Choose Wide If:

if you find regular condoms too tight or not the right length. 

Shop Wide