Adding Camping Mat loops to a pack

Two different facts came together to make me look again at using a foam matt instead of a Thermarest for some trips.

1. Some of the ground I was camping on - forest floors and mossy grassland was very soft and comfortable without a mat.
2. Foam mats are VERY light.

Here is a quick comparison chart for Long mats.

So that is quite a compelling argument for losing the Thermarest for some trips - up to 600g of weight saving or in my case around 400g (the Thermarest stuff sack is about 30g)

It is difficult for me to think of ways of shedding 400g from my pack so cheaply albeit only for some trips where I know the ground is going to be relatively soft. A foam mat on rock is still a little masochistic for me at this point in time...

On the Kimmlite pack I have sewn 4 loops of 20mm nylon webbing to the base of the pack. I used 12cm lengths but this was far too generous and 8cm would be more than enough.

On the Jam pack I have sewn two 8cm loops of 15mm nylon tape to the base of the pack at the front and two 8cm loops of 15mm tape to the existing ice axe loops on the front of the pack. Note also that on the Jam pack these loops are in addition to the loops for a trekking pole. It does not make sense to try and use one loop for two different tasks at the same time.

P.S. For the gramme counters, I have in the above picture placed my camping mat in a waterproof nylon cover and secured it with two nylon straps. This adds maybe 60g to the total weight. It made the mat very secure so that it did not wobble around and kept it dry during some very heavy rain.