Do I really need trekking poles?

Yes. The wind in Patagonia is incredibly strong. Poles provide a third and fourth point of contact, preventing you from being blown off-balance on mountain passes.

Can I just buy gear when I arrive?

You can rent technical gear in major hubs like Puerto Natales or El Chaltén, but do not rely on buying high-end boots or jackets last minute; sizing and stock are limited.

How to Pack for Patagonia's Four Seasons in a Day

Pack using a strict three-layer system: a moisture-wicking base, an insulating mid-layer, and a high-quality hardshell jacket. Expect high winds and sudden rain, so waterproof gear is non-negotiable regardless of the season.

Master the base layer. Avoid cotton at all costs. Bring two merino wool base layer tops and one pair of leggings. Merino wicks sweat and stays warm even if you get caught in a downpour.
Select your mid-layer. Bring a lightweight fleece or a packable down 'puffy' jacket. You will be taking this on and off constantly as you move between wind-exposed ridges and protected valleys.
Prioritize your outer shell. Invest in a dedicated, seam-sealed waterproof hardshell jacket. It must be windproof; Patagonia's gusts can reach 100km/h and will cut straight through a cheap windbreaker.
Protect your extremities. Pack one pair of broken-in waterproof hiking boots, two pairs of thick wool socks, a beanie that covers your ears, and lightweight touchscreen-compatible gloves.

Do I really need trekking poles?: Yes. The wind in Patagonia is incredibly strong. Poles provide a third and fourth point of contact, preventing you from being blown off-balance on mountain passes.
Can I just buy gear when I arrive?: You can rent technical gear in major hubs like Puerto Natales or El Chaltén, but do not rely on buying high-end boots or jackets last minute; sizing and stock are limited.