Big Agnes String Ridge VST 2.5 Footprint

Big Agnes cuts this footprint to match the floor dimensions of the String Ridge VST 2.5 tent, so it goes under the tent as a sacrificial layer that takes the abrasion from ground contact instead of the tent floor fabric. It's a tent-specific accessory - it won't work with other Big Agnes models even if their footprint looks similar in size - so it only makes sense if you own the String Ridge VST 2.5. For trips on gravel, scree or rooty ground it extends the working life of the tent floor; on soft, established campsites the benefit is smaller and many owners will get by without it.