The problem with dressing for a long-haul flight in winter is that you are dressing for four climates at once. A humid departure terminal. A cabin that runs cold for eleven hours and then inexplicably warm for the last two. A jet bridge somewhere in Europe at minus four. And a taxi queue where you are standing still in it.
Most people solve this by carrying a coat they never wear on board and sweating through a cotton t-shirt for the middle nine hours. There is a better way, and it comes down to fibre choice more than anything else.
Start with merino against the skin
Cotton absorbs moisture and holds it. Once a cotton layer is damp — from a rushed connection, from a cabin that is warmer than you expected — it stays damp, and then it makes you cold when the temperature drops. Synthetics dry faster but hold odour, which matters on a flight long enough that you will arrive and go straight somewhere.
Merino does neither. It regulates temperature in both directions, moves moisture away from the skin as vapour before it becomes sweat, and resists odour naturally over consecutive wears. A 200gsm merino base layer top and matching leggings will keep you at an even temperature across the whole flight without you touching the air vent once.
The other advantage is that merino does not crease the way cotton and linen do. You will get off the plane looking like you were sitting down for a while, rather than like you slept in a shirt.
Add a mid-layer you can sleep in
The layer over the top has a specific job: it needs to be warm enough for the cold stretch of the flight, soft enough that you can actually sleep in it, and presentable enough to walk through an airport without changing.
A fine-gauge knit does all three. The Megève Cashmere Half-Zip is fully fashioned in 90% Australian merino and 10% cashmere, so it has the softness to sleep against and the structure to look deliberate at the other end. The half-zip matters more than it sounds — it is your thermostat. Open at the neck when the cabin warms, closed to the collar when it drops.
Leave the bulk for the overhead locker
Do not wear your ski jacket on the plane. It is too warm for the cabin, it is awkward to sleep in, and it takes up the seat space you need. Wear the layers, carry the outerwear.
The exception is arrival. If you are landing somewhere genuinely cold, keep a merino beanie in the seat pocket rather than the locker. The last hour before landing is when the cabin gets coldest, and it is the one thing you will want immediately at the door.
The complete flight outfit
- Merino base layer top and leggings — the foundation, worn against the skin
- Fine merino and cashmere half-zip — your adjustable warmth layer
- A relaxed trouser or the base layer leggings alone, depending on how you feel about it
- Merino beanie, in reach rather than in the locker
- Outerwear carried, not worn
The test of a good travel outfit is whether you could get off the plane and go straight to lunch. Layers in natural fibres pass that test. A tracksuit does not.
Explore The Travel Edit — the LAYRÉS pieces that earn their place in a carry-on.