These packs are both made from Cordura and about 24L. On the left is a Sea To Summit with just the main compartment with rolltop and compression loops and string on the back. On the right is a Matador with a rolltop main compartment, sternum strap, 2 stretch side pockets, and a back zippered pocket.
Ideally these are reasonable as a day pack or even a commuter although I'm not sure how well the Cordura will stand up. Given how small they pack down to I could carry the other as a backup. Matador appears to be a US company and their pack is actually lighter and less expensive than the STS.
I can make this kit smaller and lighter depending on how much I'm willing to suffer but this is the starting point (from left to right):
- klymit static V junior wrapped around a thermarest sit pad
- Borah Bivy
- STS hammock tarp
- STS mesh hammock XL
- STS CoolMax Bag liner for those warmer nights and can be replaced with a Reactor Extreme (same size but 25F warmer)
- mini umbrella
- STS Silnylon Poncho Tarp
- med kit
- STS water bucket, digital thermometer, emergency whistle
- MSR water filter with prefilter
- ZPacks carbon fiber stakes
Not pictured: spool of 2mm cordage, water bottle, mini caribiners, lighter, food.
The basic kit comes down to 5-7 pounds. With food and water closer to 10 pounds. I could go with less water but it means doing things differently... camelup as often as possible. I could also go without the hammock or exchange the tarp for a lighter/smaller one or just use the poncho. I could also choose a smaller pad.
Also, it's a good idea to use a ditty bag to hold your bits and bobs. I also purchased a hip belt for those things and it worked great and kept the weight off my pack.