Do I really need trekking poles?

Yes. The terrain is frequently muddy, steep, or covered in loose rock. Poles save your knees on the long descents and help you keep balance against the sudden, powerful wind gusts.

Should I pack jeans for the evenings?

No. They are heavy, take forever to dry, and are useless in the cold. Pack a pair of lightweight, quick-dry travel pants for camp or town time instead.

Is it worth buying a specific 'Patagonia' branded jacket?

Brand doesn't matter; technical specs do. Look for high-quality windproofing and moisture management ratings rather than a logo.

How to Pack for Patagonia's Four-Season-in-a-Day Weather

Pack using a strict three-layer system: a moisture-wicking base, an insulating mid-layer, and a high-quality hardshell outer layer. Patagonia's wind is constant and weather shifts rapidly, so avoid cotton entirely and prioritize synthetic or wool fabrics that dry quickly.

Choose your base layer. Bring 2 pairs of merino wool or synthetic thermal leggings and 3 long-sleeved base layer tops. These stay warm even when damp and do not hold odors like cotton does.
Select your mid-layer. Pack one medium-weight fleece and one high-loft down or synthetic puffer jacket. The puffer is for rest breaks and cold evenings, while the fleece is for active trekking.
Secure a windproof outer shell. This is non-negotiable. Bring a Gore-Tex or similar technical waterproof jacket that is fully windproof. Patagonia wind can exceed 100km/h; a light rain shell will not suffice.
Protect your extremities. Pack 3 pairs of thick, wool-blend hiking socks, a windproof beanie, and a pair of mid-weight waterproof gloves. Keep these in a waterproof dry bag inside your pack.

Do I really need trekking poles?: Yes. The terrain is frequently muddy, steep, or covered in loose rock. Poles save your knees on the long descents and help you keep balance against the sudden, powerful wind gusts.
Should I pack jeans for the evenings?: No. They are heavy, take forever to dry, and are useless in the cold. Pack a pair of lightweight, quick-dry travel pants for camp or town time instead.
Is it worth buying a specific 'Patagonia' branded jacket?: Brand doesn't matter; technical specs do. Look for high-quality windproofing and moisture management ratings rather than a logo.