If your shirt collar feels too tight, you can instantly expand it with these flex buttons. They also work for widening cuffs if your wrists need more space.
✔ Quick and easy solution – no sewing needed
✔ Discreet and comfortable
✔ Perfect for dress shirts, uniforms & formal wear
Includes: 6 buttons in 10mm, 15mm & 19mm















One button is broken, have tested but not used sharply