The Frontier Ultralight Collapsible Pour Over is a fold-flat coffee dripper with a fine stainless steel mesh filter sized for roughly 30g of grounds, so no paper filters need carrying or packing out. The silicone mount base sits on most mugs and wide-mouth bottles rather than requiring a dedicated cup.
Being metal mesh rather than paper, the coffee will carry more fine sediment than a paper filter brew — a trade-off pour-over purists may notice, but a reasonable one for a filter that folds flat and needs no consumables on multi-day trips.