I've been using a simple plastic pour over (a cheap Vario) with paper filter. It's the safest way to brew coffee in the field: no glass, no ceramic, no parts that can freeze (a french-press can freeze together at -30º when not in use).
![Pour over filter](https://cdn.shopify.com/s/files/1/0637/0944/6363/files/DSCF5251_600x600.jpg?v=1653575571)
I buy all of my coffee gear at Eight Ounce of Coffee in Ontario. They offer a superb service! Check it out: https://eightouncecoffee.ca/
Cheers,
JP