OSFM Nappy Pattern


4 – 18kg/9-40lb

OSFM stands for One Size Fits Most and that’s exactly what this nappy does – it will fit most little ones from birth until toilet training! The MBJM OSFM is a brilliant fitting nappy with no rise snaps giving a clean, smooth finish. These instructions explain how to make an AI2 (All In 2) nappy, which is basically a water resistant shell and a lay-in absorbent booster. If you have a little nappy know-how it is very easy to convert this pattern into an AIO (All in One ) or pocket.



The nappy itself is made using a regular sewing machine. An overlocker is desirable for making the absorbent booster, but a sewing machine can be used. You will need a snap press or pliers for attaching the snaps. The instructions are written with complete beginners in mind, so if you have never made a nappy before, don’t worry! I talk you through every step.

If you’re not convinced that One Size really can Fit Most, I have included photos of my youngest boy, at 4 weeks and 3.9kg, and Jack as a very tall, 18kg 3 year old. Both could comfortably wear the exact same nappy.

You are welcome to sell items made using any MBJM sewing pattern. I do not charge a license fee, I simply ask that you make a charitable donation (details are included in the instructions).

This is an instant download PDF, not a finished item. Due to the digital nature of PDF patterns, no refund can be given if purchased in error.


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