Products
/
Free Fibers
/
Sync

Sync

A new frontier for softness

Ecodown Fibers Sync is where softness meets science. Inspired by the power of stellar fusion, this next-gen insulation blends dual-performance fibers to create something truly out of this world: ultra-lofty, cloud-like comfort that holds its shape. No clumping, no compromises.

What makes Sync special? It’s the most design-liberating free fiber in the Thermore® lineup. Whether you’re sculpting sharp fashion silhouettes or going big with voluminous outdoor gear, Sync flows effortlessly into any design vision.

core properties

Super resistant to clumping

100% recycled from PET bottles

High lofting and soft: +640 fill power

Exceptional warmth

Extremely Versatile (can even be handstuffed)

Animal Free

certifications

OEKO-TEX® STANDARD 100

GRS

BLUESIGN

download the full spec sheet

Which insulation is right for your design? Share your info to get a full spec sheet and connect with a Thermore expert.

made with Sync

Hunter

Elements Wiley Sonic Welded Pu Puffer Jacket

hear it from our customers

“For insulation that is both sustainable and uncompromisingly protective, we used Ecodown Fibers Sync to deliver warmth, comfort, and performance against the Elements.”

Design, Hunter

Explore other Free Fibers

Explore our complete collection of free fiber solutions designed to deliver exceptional warmth, sustainable innovation, and freedom in garment design.