Groundsheet made from polyester coated fabric, 450g/m2, for the Winnipeg size 2 frame tent. The size 2 has 35 square metres of floor space so this isn't a small groundsheet by any means, but it does do a great job of covering the ground to prevent it getting churned up or to stop water coming up through the ground into the tent (trust me, I've seen that happen). A great addition if you expect to use the tent in damp/wet weather or even if you just want to protect the grass.