This is a must-have cold-weather accessory when pregnant! Instead of buying a maternity jacket once your belly gets big, just get this set of zippers and panels, which enlarges the front of your existing, favorite jacket! When you no longer need it, just remove it! This set, from the Canadian company MakeMyBellyFit, includes: 1) a universal zip-adapter that slides over your jacket zipper; 2) an adjustable, PFAS-free extender panel that feels like a softshell ski jacket; 3) a removable fleece layer that makes wearing the panel even warmer and cozier. Postpartum, you can use the set while wearing your baby in a soft front-carrier/wrap/sling. Just insert the panel and zip your jacket around the carrier. When you only need a few extra inches of width -- such as in early pregnancy or postpartum when not babywearing -- you can use the zip-adapter without the panel. The zip-adapter should secure onto most brands and sizes of zippers except for "Metaluxe" zippers. Visit MakeMyBellyFit.com to learn about Metaluxe zippers and how to attach the set to your jacket. Rain, down, and parka/ski jackets should all work with the set. (Use the plastic snaps to fold down the top of the panel. The panel is 26 inches long when not snapped short. At its widest, the panel is 10 inches. At its narrowest it's 4, excluding the zip-adapters, which together add 3 inches.) Color is black. The materials are resistant to wind, rain, and snow. The set is EUC, but the fleece part has pilling (see photos).