FlexiKold Gel Soft Flexible Ice Packs for Injuries - Reusable Freezer Cold Pack, Cold Compress & Cooling Gel Pad for Face, Shoulder, Hip, Leg, Arm, Ankle & Foot Injury - Large - 10.5" x 14.5

The quality of these ice packs and the size of them that covers the lower and midback areas has been surprising excellent. Would definitely recommend for back pain relief... strongly recommend. Very glad that I chose them. They have truly helped me deal with the severe back pain I've been experiencing. This is a very good product... really.

I got the two-pack and I highly recommend it. They don't stay cold as long as some other ice packs we've had over the years, but the quality of these new ones is so much better that it's not really an issue. The beauty of having two of them is you can always have one at the ready in the freezer when it stops being cold enough. Other reviews said they are heavy and recommended this smaller size - great advice! These are just big enough to lay on your pillow, under the small of your back, upper back, etc. I keep both of them on a fast-food type tray in the freezer - works great! These feel like physical therapy quality to me (and we've seen many).