Kevin Kwrote a review of Continental Tubes - 27.5in on August 12, 2015
Familiarity: I've put it through the wringer
These tubes are pretty standard. They are durable, yet pack up relatively small to not take up much space in a pack or on your frame. My favorite part of these is that they have longer valves so they will work with deeper carbon rims such as Enve M60's. It's no fun finding out that the tube you left in your pack doesn't stick out of your rim enough to pump it up when sitting on the side of the trail.