Do I need an oxygen tank?

No. Unless you have a pre-existing condition, you do not need personal oxygen. Most hotels and tour operators in high-altitude areas like Uyuni or La Paz provide oxygen bottles for emergencies.

Is a heavy parka necessary?

Not if you have a good layering system. A down 'puffy' jacket that compresses into a small bag is better than a bulky, non-breathable parka.

Can I buy gear in La Paz?

Yes, but it is often knock-off or low-quality. Buy your core technical gear (jackets, shoes, sunglasses) at home before you leave.

Packing for Bolivia's Altitude and Weather Extremes

Pack exclusively in thin, high-performance layers to handle temperature swings that can span 40 degrees Fahrenheit in a single day. Prioritize a modular clothing system over heavy coats, and bring dedicated gear to combat the intense UV radiation at high elevation.

Master the layering system. Bring a moisture-wicking base layer, a fleece or wool mid-layer for insulation, and a high-quality down jacket for nights. Top it off with a windproof and waterproof outer shell, as high-altitude winds in the Altiplano can be brutal.
Protect against high-altitude UV. The sun is significantly stronger at 12,000+ feet. Pack a wide-brimmed hat, polarized sunglasses (essential for salt flat glare), and at least 3 tubes of SPF 50+ sunscreen. You will burn in 15 minutes without these.
Account for dryness. The air in Bolivia is incredibly dry. Bring heavy-duty moisturizer, lip balm with SPF, and saline nasal spray to keep your sinuses from cracking and bleeding in the desert climate.
Organize for variable travel. Use packing cubes. You will be moving from humid bus stations to freezing salt flats; cubes allow you to access your base layers without dumping your entire bag on a dusty floor.

Do I need an oxygen tank?: No. Unless you have a pre-existing condition, you do not need personal oxygen. Most hotels and tour operators in high-altitude areas like Uyuni or La Paz provide oxygen bottles for emergencies.
Is a heavy parka necessary?: Not if you have a good layering system. A down 'puffy' jacket that compresses into a small bag is better than a bulky, non-breathable parka.
Can I buy gear in La Paz?: Yes, but it is often knock-off or low-quality. Buy your core technical gear (jackets, shoes, sunglasses) at home before you leave.