Greentree Premium Medium Maxi-Fleece Plant Frost Protection Jacket This Medium Frost Protection jacket from Greentree will help protect your plants and shrubs from frost and the elements. 70cm x 95cm FREE POSTAGE £6.90 This Greentree Medium Maxi-Fleece Premium Frost Jacket protects shrubs, small trees and specimen plants from the frost. Made from 70gsm high grade breathable fleece. Tested to minus 7 degrees C. Large opening with a full length zip for easy access, plus a drawstring and toggle. To cover plants 70cm high and 95cm wide. Protects from the effects of freezing temperatures, frost, hail and rain.