Grow-Fit from Patagonia helps extend the life of your kids jacket or pants by extending the fit. Kids grow up quickly, and nobody wants to be stuck without winter gear only because that perfectly good jacket or pant couldn't stand up to a summer growth spurt. Patagonia combats this by building extra length in the sleeves and pant legs of select kids winter jackets and pants, as well as certain infant products. Similar to like features from other brands, simply fold the sleeve or pant leg inside out and remove the contrast color thread holding back the extra material. Pull after removing the thread and the sleeve or leg will extend by about 2 inches in junior kids products, and 1.5 inches in infant styles, allowing you to get an extra season or two out of their outerwear.