VentaPak Lightweight Ventilation Backpack Spacer - External Mesh Frame for Hiking & Biking Backpacks - Ventilation for Airflow Sweat Reducing

A good inventive way of ensuring ventilation for those of us who get hot and bothered in the summer.

I find this handy for the trecks , its comfy.

You never know if these new things will do as they say but this time it did! Easy to fit to my Osprey running backpack and the gap is there for all to see. It's a little fiddly to put the bag on but after a couple of uses you fit it as quickly as before. Without doubt this mesh held frame holds the bag away assisting your back to stay much cooler than with a bag stuck to it. The weight too shifts to your hips and away from your shoulders which is a great thing as you should take the weight this way. Very pleased with this newish item that really does what it claimed to do. Brilliant.

Wanted a spacer for my camera backpack and this is the only one I could find. Thought I would have to send it back but had to get creative to make it fit. Not designed for rear opening bag but in the end got it to fit and am pleased. Needed the spacer as back got sweaty.

Although the Ventapak is light and performs its function, the materials used in its construction do no feel robust. This is evidenced by the fact one of the clips snapped on its second use when carrying a small backpack containing a laptop.

As lots of others have mentioned, the frame will more than likely snap. Mine did!The result is that the mesh looses all structure and therefore does not serve its purpose of keeping your pack off your back.I have tried to mend the frame by strengthening the weak point but have had no luck.Real shame as theoretically its a brilliant product but in its current design, it is an expensive waste of money.If you have a very lite pack load and are insanely careful you might be alright but buyers beware.