Paul Frank's Extend-O-Matic system is similar to the extended growth systems in other brands in that it allows the jacket or pant to grow with your child. On the inside liner of these garments, and also on the waist of select pants, there is stictching that holds back the extra length. Fold the jacket sleeve or pant leg inside out, or look to the back of the pants for the waist extension, snip this stich and pull to extend. This feature saves you money and the hassle of having to buy a brand new jacket or pant come next season.