Great customer service, great back support!
UPDATE #2: 17 day roadtrip and halfway through we had a heat wave of 100+ degree temperatures. I have fabric seats in a jeep and my options were to blast the AC and pay double for gas (6k miles is a lot of gas money already) or drive with the windows down. These saved us! The mesh support allowed the breeze to hit our backs and keep us cool. We used the air conditioning only in traffic when the wind died down. They held together well too. I didn't use them continuously but alternated on and off to give my back new positions and prevent stiffness.<br />I also brought them into the hotel room as support for sitting up in bed at the end of the day.  They were absolutely worth the hassle of carrying them in and out with my bags.<br />These are definitely going to stay in my summer road trip kit. Updated to 5 stars!<br />UPDATE: great customer service! Cartop has a great guarantee policy for defective products and is replacing my damaged item. Hopefully it'll arrive in time. I'll update again after my road trip.<br />ORIGINAL REVIEW: I had lumbar surgery several years ago. It helped immensely, but I still have occasional pain. Especially if I sit too long (more than a couple minutes) in a chair without support.<br />These are actually great for my back. Not only in a chair, but while sitting in bed reading they provided just the right support and air flow preventing me from overheating. I felt the difference immediately. As soon as I stood up, I didn't need to stretch or move carefully for those first few steps like I always do. The ache was gone, which was such a relief.<br />However, one of the supports snapped its stitching when I tried to buckle it to the seat in my car. I hadn't even used it yet. Hadn't messed with the adjustable bands at all. I've used the other for all of 2 days and while it's fine so far, I'm concerned.<br />I purchased them for an upcoming road trip for my mother and I and I don't think they'll last those 2 weeks. I'm going to try to fix and reinforce the seams, but I suspect I'll have to buy new ones along the way.
Rating: 5 stars