DOCK & BAY - Extra Large Picnic Blanket, Quick Dry, Water Resistant, Recycled - Unicorn Waves 240 x 170cm. It doesn't get more comfortable than this. 2-LAYER DESIGN - Our blanket features a 2-layer design, with a waterproof bottom layer so you don't have to think twice about damp grass, and a top layer made from our signature, quick-dry material for no more worrying about anything getting wet.