
Preventing Down Leakage
Solutions to help reduce leakage from down jackets
With the potential for garment rejection and high production costs, the consequences of down leakage can be damaging for manufacturers.
In order to prevent this from occurring, Coats is on hand to provide high quality threads and comprehensive technical support that covers areas from needle points to factory conditions.

Innovative Solutions for Down Jackets
Coats has proven solutions to help you reduce leakage from down jackets.

Down Jacket Recommendations
Coats provides a full range of threads which are highly suited to the application of down filled jackets.
Coats AS Thread Range
Coats AS sewing threads are specifically designed to prevent the causes of down leakage in insulated jackets.
Learn more about these products below.
Epic AS
- Highly versatile corespun sewing thread made from 100% polyester
- The construction of the thread, with the continuous filament polyester core and soft staple polyester wrap, delivers high seam strength and excellent performance
- Excellent static and dynamic friction values reduce leakage of "down" through the needle hole
- Provides solutions for oil-sensitive materials such as CO fabrics
- Allows for improved sewing performance on complex materials due to its higher heat shield
- The reduced frictional values allow smoother thread pull off through the sewing machine helping to deliver longer lasting seams


Gral AS
- 100% polyester continuous filament sewing thread with a smooth surface, creating a clean seam appearance
- Excellent static and dynamic friction values reduce leakage of “down” through the needle hole
- Allows lower tension settings, improving the stitch balance and providing neater and flatter seams
- Provides solutions for oil-sensitive materials such as C0 fabrics
- Provides outstanding sewability
Epic EcoVerde AS
- Highly versatile corespun thread made from 100% recycled materials that is GRS certified
- The reduced frictional values allow smoother thread pull off through the sewing machine helping to deliver longer lasting seams
- Excellent static and dynamic friction values reduce leakage of “down” through the needle hole
- Provides solutions for oil-sensitive materials such as CO fabrics
- Allows for improved sewing performance on complex materials due to its higher heat shield
- Enhances the uniformity of the stitch formation giving you neat and well balanced seams


Eloflex AS
- Delivers high extensibility and good seam strength with excellent sewability and controlled elongation
- Minimises the risk of seam extension failure on stretch fabrics
- Enables high stretch lockstitch seams
- Excellent static and dynamic friction values reduce leakage of “down” through the needle hole
- Designed for the needs of outdoor performance sportswear, woven outerwear, fashion jackets and next-to-skin garments
- Provides solutions for oil-sensitive materials such as C0 fabrics
- The reduced frictional values allow smoother thread pull off through the sewing machine helping to deliver longer lasting seams
Sylko AS
- Trilobal polyester thread for machine embroidering with enhanced uniformity of the stitch formation
- Engineered for sewing at the highest speeds
- Reduces potential lube migration
- Provides solutions for oil-sensitive materials such as C0 fabrics
- Allows for improved sewing performance on complex materials due to its higher heat shield
- The reduced frictional values allow smoother thread pull off through the sewing machine helping to deliver longer lasting seams
- Excellent lustre and extensive range of colours and durability
- Available with recycled materials
