Arc'teryx Cerium SL Hoody Men's Insulated Down Jacket

The Arc'teryx Cerium SL Hoody is an ultralight, highly packable down layer built for low-output activities in cool conditions. Its 10D Pertex Quantum nylon shell holds 1000-fill European grey goose down in the body, arms and hood, while Coreloft synthetic insulation is mapped under the arms, at the shoulders and cuffs to manage moisture in high-exposure areas.

Weighing very little and compressing down small, it works as a warm midlayer or an emergency layer that disappears into a pack. The hood, full-length zip and articulated fit keep warmth close without restricting movement, making it a versatile piece for alpine starts, rest stops and camp.

Key Features

Brand	Arc'teryx
Model	Cerium SL Hoody
Gender	Men's
Product Type	Insulated Down Jacket
Down Insulation	1000 fill grey goose down, RDS - 100% Grey Goose Down (minimum 90% down)
Synthetic Insulation	Coreloft 40gsm and 60gsm - 100% Polyester
Body Fabric	10D Pertex Quantum, 28gsm, FC0 DWR - 100% Nylon
Lining	Quantum downproof, 28gsm, FC0 DWR - 100% Nylon
Hood	Insulated hood
Closure	Full-length front zip
Fit	Regular
Down Fill Weight XS	43.36 g
Down Fill Weight S	45.66 g
Down Fill Weight M	49.57 g
Down Fill Weight L	53.41 g
Down Fill Weight XL	58.11 g
Down Fill Weight XXL	62.90 g
Certifications	Fair Trade Certified, bluesign approved materials, RDS down
Country of Origin	Vietnam
Care	May release plastic microfibres into the environment when washing

Highlights

• 1000-fill European grey goose down in the body, arms and hood
• Coreloft synthetic insulation mapped under the arms, at the shoulders and cuffs
• Ultralight 10D Pertex Quantum nylon shell with FC0 DWR finish
• Highly packable design for low-output activities
• Fair Trade Certified and bluesign approved materials

Materials & care

Down Insulation: 1000 fill grey goose down, RDS - 100% Grey Goose Down (minimum 90% down), Synthetic Insulation: Coreloft™, 40gsm - 100% Polyester, Synthetic Insulation: Coreloft™ 60gsm - 100% Polyester, Lining: Quantum downproof, 28gsm, FC0 DWR - 100% Nylon, Body: 10D Pertex® Quantum, 28gsm, FC0 DWR - 100% Nylon, Origin of fabric: JAPAN, Origin of dyeing: JAPAN, Origin of Manufacture: VIETNAM, May release plastic microfibres into the environment when washing

Sizing & fit

Available in sizes XS to XXL. Size L measurements: chest 123.6 cm, waist 112.6 cm, center back length 71.5 cm.

Frequently asked questions How much down does the Cerium SL Hoody contain? The down fill weight varies by size: XS 43.36 g, S 45.66 g, M 49.57 g, L 53.41 g, XL 58.11 g and XXL 62.90 g of 1000-fill grey goose down. Where is the synthetic insulation placed? Coreloft 40gsm is used in the underarm panels, while Coreloft 60gsm is placed at the shoulders and cuffs. The rest of the jacket is insulated with 1000-fill grey goose down. What are the measurements for a size Large? Size L has a chest of 123.6 cm, a waist of 112.6 cm and a center back length of 71.5 cm. What is the warranty on this jacket? Arc'teryx apparel is covered by a limited warranty for the practical product lifespan, which depends on the type of product, its use and the issue involved. Damage from misuse, accident or negligence is not covered.

Shipping & Delivery

Shipping is FREE on every order — no minimum purchase, no promo code needed.

• Processing time: orders ship within 1–3 business days (Monday–Friday, excluding holidays).
• Delivery time: after your order ships, most packages arrive in 2–5 business days.
• Tracking: you'll receive an email with your tracking number as soon as your order leaves our facility in Wenatchee, WA.
• Where we ship: we currently ship to addresses within the United States.
• Large items: TVs and large appliances are packed with extra protection and may require a signature on delivery.

Questions about an order? Email help@chantforge.com with your order number.

30-Day Free Returns

Changed your mind, or the size isn't right? You can return most items within 30 days of delivery, and the return shipping is on us.

1. Email help@chantforge.com with your order number and the item(s) you'd like to return.
2. We'll send you a prepaid return label and instructions.
3. Pack the item in its original condition with all tags, accessories and packaging, and drop it off with the carrier.
4. Once we receive and inspect your return, we'll refund your original payment method — usually within 5–7 business days.

Please note: items must be unworn or unused and in original condition. Footwear should be tried on indoors on a clean surface. LEGO sets must be unopened. If an item arrives damaged or defective, contact us within 48 hours of delivery and we'll make it right.

Read our full Refund Policy.

100% Authenticity Guarantee

Every item sold by Chant Forge is guaranteed to be 100% authentic. We never sell replicas or counterfeits.

• If you ever believe an item you received is not authentic, contact us and we'll issue a full refund, including any shipping costs.
• Products ship in their original manufacturer packaging whenever available.
• Have a question about a specific product? Email help@chantforge.com — we're happy to help.