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Durable | Packable | Windproof Warmth
What makes this jacket incredible?
- Warm without bulk
- Packs into its own pocket
- Windproof with PFAS free DWR
- Strategic body and arm insulation
- Secure zip pockets for essentials
- Soft touch comfort where it counts
Risk-free try-on at home.
If you ever damage any of your apparel, we'll repair it for free, for life.

Packable warmth, anywhere.
The SierraLoft insulated puffy jacket was designed to be the one piece you reach for all winter long. With a dialed in midweight insulation level, it strikes an ideal balance between warmth and packability so you do not feel weighed down while still staying cozy in cold conditions. Equally at home on high alpine missions or as the single jacket you toss in your pack for travel, it delivers dependable performance in a wide range of temperatures.
Three zippered pockets provide secure storage for phones, wallets, or trail snacks, and the entire jacket compresses neatly into the front left pocket when not in use. It feels shockingly small and lightweight when packed down, especially considering how warm it is in use. The PFAS free DWR finish helps repel light moisture, and the windproof design keeps unwanted drafts at bay. Ideal for roughly thirty to fifty five degree Fahrenheit conditions depending on your personal thermostat and how tough you think you are.
Features & Specs
- Best For: Winter travel, alpine missions, everyday cold weather
- Durable: Reinforced exterior fabric designed for long term use
- Packable: Compresses fully into front left zipper pocket for efficient travel
- Windproof Warmth: Midweight synthetic insulation blocks wind and traps heat
- Weather Protection: PFAS free DWR finish repels light moisture
- Pockets: Two hand zipper pockets and one chest zipper pocket
- Adjustability: Adjustable waist cord for a customizable fit
Fabric Details / Weight
- Shell: 30% Recycled Nylon, 59% Nylon, 11% Spandex
- Shell fabric weight: 70gsm
- Lining: 94% Nylon, 6% Graphene Nylon
- Lining fabric weight: 38gsm
- Insulation: 60gsm for body, 40gsm for sleeves. Made from 100% recycled materials, including post-consumer water bottles and pre-consumer waste.
Weight by size:
- S - 408g
- M - 433g
- L - 441g
- XL - 458g
- XXL - 470g
Wash / Care Instructions
Machine-wash cold, tumble dry low, and skip the fabric softeners. Toss in a couple dryer balls to bring the loft back and you’re ready for the next adventure. Our synthetic-insulated pieces are built to take a beating.
Shipping / Returns
- Fast & free shipping on all US orders.
- Free returns/exchanges on all products. We just ask that the product is still new & unwashed :)
- U.S. expedited delivery cutoff is 12PM PST. Orders placed after 12PM PST will ship the following business day.
- Free international shipping on orders over $100.
- For more information regarding shipping, returns, or exchanges, please click here to visit our Shipping & Returns page.
What Customers Are Saying...
Dominic A.
Packable and Warm!
This has been my go to warm jacket. I love that it's windproof and water resistant...plus it packs down super well!
Michael F.
Lightweight But Warm
Great jacket for keeping warm in the morning and night. Very comfy and lightweight. I love that it doesn’t get dirty easily too. Well made.
Brian O.
Great For Southern Winters
This jacket is great for southern winters when the mornings are chilly and the afternoons are mild. It's not too hot and layers well.
How To Pack The SierraLoft Jacket


The KETL Commitment
Everything we make is guaranteed to be amazing & last a lifetime. We stand behind our craftsmanship with a lifetime warranty & offer a thorough repair / replace program. Visit our Warranty / Repairs page for more information on our commitment to excellence.

Packs into front left pocket.

Fits your phone perfectly.

Repels water if you get stuck in a storm.
Packs into front left pocket.
Fits your phone perfectly.
Repels water if you get stuck in a storm.



Pair It With

This product is rated 4.8 of 5.0 stars.
It has received 164 reviews.











