I recently improvised this pour over solution while traveling and it's so simple, light, compostable and _cheap_, I've been taking it camping. 

Bring paper filters and ground coffee, and use a fork or cut a forked twig to keep the filter from collapsing into the cup. Here I doubled the paper filter to make it stronger. You could get all fancy by stringing it above the cup somehow. You don't need anything fancy to make totally great coffee!

[![paper filters + fork][1]][1]


  [1]: https://i.sstatic.net/H1OQE.jpg

Next level on quality: use a hand grinder to grind whole beans just before brewing. 

Third level: if you'll be out more than a couple weeks, roast green beans in a dry frying pan or pot.