Magma Marine 15 Kettle Grill Covers These Magma Marine Grill Covers are constructed of Sunbrella solution-dyed acrylic fabric, the same fabric used for quality boat covers. This material is water and fade resistant, breathable, long lasting, and resistant to mildew and UV damage. 5 year warranty covers the fabric becoming unserviceable because of loss of color or strength from normal exposure conditions including sunlight, mildew, rot and atmospheric chemicals. 1 year warranty on all other compo