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Otimos UL Quilt Size Guide – What Size Do I Need?

We Are Proud To Use Only The Highest Quality Filling
When it comes to ultralight camping quilts, the quality of the down insulation matters just as much as the design of the quilt itself. That's why every quilt in our UL range is filled with premium Traceable DownPlus™ duck down, sourced and processed to the highest international standards.
Fully Traceable Down
Every quilt includes a unique QR code that allows you to trace the exact batch of down used in your product. By scanning the code, you can access detailed information about the insulation, including:
- Down content
- Cluster percentage
- Fill power
- Turbidity rating
- Origin and traceability
- Quality control data
This level of transparency gives you complete confidence in the performance and provenance of your insulation.
Responsibly Sourced
Our DownPlus™ duck down is sourced through an RDS-certified supply chain.
The Responsible Down Standard (RDS) helps ensure that the down comes from ducks that have been treated responsibly and that strict animal welfare requirements have been followed throughout the supply chain.



Independently Verified Quality
The down used in our quilts is produced in a factory that has achieved:
Responsible Down Standard (RDS) certification
Independent verification by the Down & Feather Bureau
ISO 9001 quality management certification
These certifications provide assurance that the down is processed under rigorous quality control systems and consistently meets demanding performance standards.
Why High-Quality Down Matters
Premium down provides an exceptional warmth-to-weight ratio, making it the preferred insulation choice for backpackers, bike packers and wild campers looking to reduce pack weight without sacrificing comfort.
Higher-quality down offers:
- Better loft and insulation
- Lower packed volume
- Improved durability
- Superior warmth for its weight
- Excellent long-term performance when properly cared for
By using premium traceable DownPlus™ duck down, our UL quilts deliver the lightweight performance that serious outdoor users expect while maintaining full transparency throughout the supply chain.
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