The Exped Aries Footprint is designed in Taffeta nylon with 3,000 mm water column protects tent and vestibule. Doubles as tarp.
Footprints are important
Tent floors can take a beating especially when you're hiking in the back country. I just spent a week off trail on Isle Royale with my Exped Aries tent and footprint. There were some nice features with this footprint that made it simple to install it properly under the tent and to keep it there throughout the night. Some more explicit instructions would have been helpful though, a similar problem with the Aries tent itself. All in all it was a fine footprint and I recommend it for every buyer of an Aries tent.