Mountain Peak Co.
Alpine Down Jacket
Premium Insulated Outerwear
Engineered for extreme conditions, the Alpine Down Jacket features 800-fill goose down insulation with a waterproof Pertex® outer shell. Designed for mountaineers who demand uncompromising warmth and mobility.
Specifications
| Material | Pertex® Shield+ Outer Shell |
| Insulation | 800-Fill Goose Down (RDS Certified) |
| Waterproof Rating | 20,000mm H₂O |
| Breathability | 25,000g/m²/24hrs |
| Weight | 485g (Size M) |
| Temperature Range | -25°C to 5°C / -13°F to 41°F |
| Hood | Adjustable, Helmet-Compatible |
| Pockets | 2 Handwarmer, 1 Chest, 1 Internal Security |
| Certifications | RDS, OEKO-TEX®, Fair Trade |
Free Standard Shipping
Estimated delivery: 5-7 business days
Express Shipping — $14.99
Estimated delivery: 2-3 business days
International Shipping — $29.99+
Estimated delivery: 7-14 business days. Duties & taxes may apply.
Orders placed before 2pm EST ship same business day. Tracking provided via email.
30-Day Satisfaction Guarantee
Return any unworn item within 30 days of delivery for a full refund.
Free Return Shipping
Prepaid return label included with every order. Drop off at any carrier location.
Exchanges
Size or color exchanges are free and ship immediately upon request.
Refund Processing
Refunds are processed within 3-5 business days after we receive your return.
Customer Reviews
Based on 128 reviews
Sarah Mitchell
Verified Purchase · 2 weeks ago
Best down jacket I've ever owned!
This jacket is absolutely incredible. I wore it during a recent trip to Iceland and it kept me warm in -15°C winds. The Pertex shell is genuinely waterproof — got caught in a snowstorm and stayed completely dry. The fit is athletic but allows good layering underneath.
James Rodriguez
Verified Purchase · 1 month ago
Great warmth, sizing runs slightly large
The build quality and warmth are top-notch. My only gripe is that the sizing runs about a half-size large. I'm usually a perfect Medium but could've gone with a Small for a more tailored look. Still, it works great for layering thick sweaters underneath.
Anna Kowalski
Verified Purchase · 2 months ago
Worth every penny
I was hesitant about the price but this jacket is worth the investment. Used it skiing, hiking, and even commuting. It packs down small enough for my backpack. The Glacier Blue color is stunning in person — photos don't do it justice!
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