Do not attempt to repair your life jacket if it is broken in any way. It’s time to replace your life jacket when the buckles or zippers break. Another factor is fabric discoloration: if the fabric has been exposed to enough UV radiation and water to discolor, the foam is likely to deteriorate as well. Your life jackets should endure for many years if you store and maintain them properly, draining off any saltwater and storing them out of direct sunlight.