Cool Garden Centre Bubble Wrap 2023. Bubble insulation is double laminated for added strength and durability. Wrap & move 500mm x 5m blue light duty bubble wrap.

It's pretty cheap at the garden centres, and you can get little lugs that pop into the aluminium channelling to hold it in place. I have learnt from bitter experience that trusting to a mild winter is often misplaced. Check stock in your local store.