Teijin Develops Deltapeak Two-in-One Sweat-Suit Fabric

Teijin Frontier Co., Ltd. has developed a new line in the Deltapeak series; i.e., a two-in-one sweat-suit fabric that combines water-repelling and sweat-absorbing properties, for fall/winter 2019.

Although existing sweat-suit fabrics are already used widely for sports outerwear, there is demand for extra-functional materials that are more stretchable, sweat absorbent, quick drying and lightweight. The new Deltapeak fabric, which is based on four-dimensional bulky Deltapeak launched in 2017, offers a unique combination of water-repellency for outer surfaces and water-absorbency for inner surfaces. This next-generation sweat-suit fabric repels light rain and mud as well as prevents sweat stains, a two-in-one blend of outer-surface water repellency and inner-surface water absorbency, for superior all-around comfort.

Teijin Frontier’s versatile new fabric also tolerates repeated washing thanks to its kneaded water-repellent yarn and advanced micro-crimping.

Special features of the new Deltapeak two-in-one sweat-suit fabric:

  • Repels rain and mud
  • Prevents sweat stains
  • Water repellency withstands repeated washing
  • Highly water absorbent and quick drying


Core features of four-dimensional bulky Deltapeak:

  • Lightweight and useful bulkiness
  • Soft touch and luxurious appearance
  • High cushioning, resiliency and elasticity for comfort
  • Low drape with beautiful shape

Teijin Frontier expects to combine its new fabric with other multifunctional materials for enhanced sportswear, fashionwear, uniforms and more. In addition, an eco-friendly version combined with fluorine-free water-repellent polyester fiber and recycled polyester fiber is currently under development.

Annual sales are expected to reach 200,000 meters by the fiscal year ending in March 2021.