Start with layers
Use a base layer, a warm mid-layer and a waterproof shell. Add a down jacket for evenings and high camps. Layers let you adapt to changing temperatures.
Look after your feet
Wear boots you have already broken in and bring several pairs of good socks. Carry blister plasters and change damp socks when you stop.
Plan how you will sleep
Teahouses may supply blankets, but a sleeping bag adds warmth and comfort. A liner adds warmth and keeps the bag fresh.
Small things that matter
Carry a headlamp, sunscreen, sunglasses, lip balm, water bottle, basic first-aid kit, power bank and cash.
Pack lighter than you think
Lay everything out and remove non-essentials. Every kilo feels heavier at altitude.
Adjust the list to your route
A warm layer that works for a low-elevation lodge walk may not be enough for a high pass or a cold shoulder-season trek. Ask your guide or operator about the expected overnight temperatures, whether accommodation provides blankets, and whether you will carry your own sleeping bag. Keep waterproof clothing and a warm layer near the top of your pack rather than buried under spare clothes.
Keep essentials accessible and dry
Carry identification, permits, cash, personal medication, a headlamp and phone in places you can reach without unpacking everything. Use a pack liner or dry bags to protect spare layers and electronics in prolonged rain. Refill water only where it is safe to do so and use an appropriate treatment method when needed. Recheck your kit each evening and dry wet items whenever conditions allow.
A note on safety
This list is a starting point, not a substitute for route-specific advice. Remote treks, winter travel and high passes may require specialist equipment, more food and stronger contingency planning. Do not ascend further if symptoms suggest altitude illness; seek qualified help and descend when indicated.