I have an Alpkit MytiMug 650 – great for bike-packing, but I tend to just use instant coffee. I recently saw this coffee press for MSR Reactors.

Wondering if anyone knows if there is something similar for Alpkit-sized mugs, or even if this would work?

Not a press, but I’ve just done a week long trip in the Alps and bought one of these:
http://www.goodcookshop.com/finum-brewing-basket-large

Made perfect brews for 3 of us and it’s so easy to use I’m using it at home instead of the usual bodum press. Edit- I think it’s cheaper on Amazon btw.

MSR Windboiler Coffee Press kit might work: http://www.cascadedesigns.com/msr/stoves/stove-systems/windburner-coffee-press-kit/product

Just checked with the caliper, the internal diameter of the MSR Windboiler is 9.5cm.

Any standard cafetiere press will work. Its a bit of a faff mind you as the Alpkit mug doesn’t have a pouring lip

Second the Finium baskets! MSR sell a branded version for nearly 3 times as much

Any standard cafetiere press will work. Its a bit of a faff mind you as the Alpkit mug doesn’t have a pouring lip

Not in a 650 it won’t. The idea is too big. Works fine in a 400 though

I use an outline filter holder for my.coffee fix

I still prefer an Aeropress, though. A bit of weight/size penalty, but coffee is sooo much better!