Osprey Backpack Stratos 34 I've used this a few times for overnight trips. I'm selling it because I haven't been hiking recently. The model is about 10 years old, but I think it's in relatively good condition. The back is mesh, so it's comfortable and doesn't get stuffy. The tabs on two parts are cracked. (See photos 11 and 12.) I don't want to throw it away, so I hope someone will use it.