This additional cover for your Vegepod is made from clear non-permeable PVC. Each cover is custom cut and hem-sewn to size and shape so they easily fit over your Vegepod canopy. The cover creates a greenhouse environment for plants allowing sunlight through and keeping rain out. The cover will protect your plants from the winter elements such as cold wind, frost and snow ensuring your plants keep growing throughout the winter season. The winter cover can be affixed over the top of the existing canopy for extra protection and you can remove covers according to the weather conditions. Please note that once the weather begins to warms up ensure you remove the winter cover to prevent over heating your plants. You will receive one small winter cover. Vegepod and stand sold separately. Irrigation pipe not included. 1 year guarantee.