Adco AquaShed SFS Designer Class C Cover 20'1"-23'Designer SFS Aqua-shed by ADCO features 3-ply side and roof panels, larger SFS roof panels, side-wall design, vents, front and back strap/buckles, weighted toss under buckles, zipper doors and is designed for moderate climates or short term storage. Triple-layer SFS Aqua Shed top panel beads water on contact and provides maximum resistance to humidity and rainfall. Larger top panel offers better protection for rain gutters and roof corner seams. Triple-layer polypropylene side panels €œbreathe€ to eliminate mold and mildew. Protects against harmful UV rays. Strategically placed air vents help prevent billowing. Tie down straps with weighted buckles make installation easier and help ensure a snug fit. Zipper entry panels allow easy access during storage. Included polypropylene ladder cap and elasticized bottom corners reduce friction and wear. Includes storage bag. Mfr. 2 year replacement warranty.