Every SIYOU set comes in Small, Medium and Large. Measure your nails once using the steps below, then match them to the chart for your favourite shape and length. Between sizes? Size up for a comfier fit.
Measure Before You Buy
Use a strip of tape or paper to mark the widest part of each nail, then lay it against a ruler and read the width in millimetres. Choose the size that fits most of your nails — if you are between sizes or have flatter nail beds, size up for a comfier fit.
Every product page carries the chart for that exact shape and length — tap Find your size next to the size buttons to open it. Sizing follows the same Small / Medium / Large system on every set.
