The Weather Station® Style: 56MB Umbrella. Lifetime limited guarantee. 100% polyester. Weather Station - lifetime limited guarantee. Weather Station umbrella frames are warranted to be free of defects in material and workmanship in all parts. This warranty does not cover the fabric, case or handle. Nor does the warranty cover damage caused by accident, abuse, or failure to allow the umbrella to dry in an open position. Should such defect cause this umbrella to fail to operate properly, please return the umbrella to George Chaby, Inc. Weather station is a registered trademark of George R. Chaby, Inc.