What to Pack for Huaraz Trekking: High Altitude Gear %currentyear%

High-altitude trekking in the Cordillera Blanca is defined by sharp climatic contrasts. At midday, intense equatorial sun at 4,500 meters produces ambient temperatures around 20°C. Within 30 minutes of sunset, temperatures plummet below freezing (-4°C to -8°C). Your gear must protect against intense UV radiation by day and severe alpine frost by night.

Essential High-Altitude Clothing

• Merino Wool Base Layers (2 sets): 200 to 250 gsm top and bottoms. Wicks perspiration away from skin while hiking and provides crucial insulation inside your sleeping bag at night.
• Insulating Down Jacket (Minimum 650 Fill Power): High-loft packable down jacket with hood for evenings at alpine camps like Taullipampa (4,250 m).
• Waterproof Hardshell Jacket & Pants (Gore-Tex or 20,000mm DWR): Protects against biting mountain winds and sudden hail storms on high passes.
• Sturdy Trekking Boots: Ankle-supporting waterproof boots with Vibram outsoles. Break them in before your trip to prevent disabling blisters on rocky moraines.
• Warm Gloves & Windproof Shell Mittens: Two-glove system (light liners for hiking, heavy insulated mittens for pass crossings at dawn).
• Fleece Beanie & Wide-Brim Sun Hat: Protects your head and ears from freezing wind and harsh high-elevation solar radiation.

Field Equipment & Accessories

• Adjustable Trekking Poles with Flick-Locks: Indispensable for knee stability during steep 1,000-meter descents over loose granite scree.
• Category 3 or 4 Glacier Sunglasses: Dark polarized lenses with side shields to prevent photokeratitis (snow blindness) caused by glare reflecting off glaciers.
• 15°F (-9°C) Rated Sleeping Bag: High-altitude mountain camps are freezing. If renting in Huaraz, verify down loft and condition before accepting.
• High-Output Headlamp (300+ Lumens): For 04:00 AM alpine starts with spare rechargeable lithium batteries (alkaline batteries drain rapidly in freezing air).
• UV 50+ Sunscreen & Zinc Lip Balm: High atmospheric altitude strips UV filtering; reapply every 2 hours on exposed skin.