King. 2300(W) x 2200(L)mm Increase the lifespan of your duvet with a duvet protector from our Essentials range. The soft spun polypropylene cover will protect your duvet by repelling dust and dirt, whilst also reducing wear and tear. This cover will protect your duvet against staining, with a zip closure at one end for added protection and to ensure a secure fit. This duvet protector is king sized and is also available in single and double sizes.