2.5 oz Frost Cloth Plant Freeze Protection Blanket 2.5oz (3' x 140') Plus Other Sizes In This Listing Heavy Weight, 2.5 oz. Permeable Fabric. Other weight fabrics & lighter germination cloth in description below. 2.5oz is the most durable, effective product on the market for "all Winter" protection. Allows Water and Light in, UV Treated, Reusable. Can be Left on in Sunny Days Without Fear of Foliage Burn.