The winter protection sheet 1 x 1.5 m from Nature is manufactured from natural rice straw, which are a natural and bio-degradable material. The advantage of rice straw is that it offers good insulation from cold, while letting the plant breathe without suffocating it. It also protects fragile pottery items when you wrap them in it.

The rice straw is between 1 and 1.5 cm thick, while the sheet is 1.5 meter in length and 1 meter in width.