This is the, soon to be discontinued, sCharger-5 8oz version. It is the predecessor to the new lighter weight 7oz version. We have a few 8oz sCharger-5s left in stock(limited quantities). Save some cost if you don't care about an extra 1oz savings in weight.
The sCharger-5 is very well received on all the hiking trails. It is the official solar charger on the PCT. Most likely you will see many sCharger-5’s on the trails. They have the best power to weight ratio that you will find anywhere. This is very important for the duration hiker. The sCharger-5 is also very reliable and you can count on it.