What is "Mechanical stretch" - Definition & Explanation
Last Updated on: 15-Apr-2023 (1 year, 1 day ago)
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Mechanical stretch

The concept of mechanical stretch in textiles refers to the ability of a fabric to stretch and recover without the use of external forces or added elastomeric fibers. It is a property that provides comfort, flexibility, and ease of movement to the wearer. This article delves into the meaning, types, handling tips, and profiles of top international users and manufacturers of fabrics with mechanical stretch.

A Brief History and Origin

Mechanical stretch has been a sought-after characteristic in textiles for centuries. In ancient times, the use of naturally elastic fibers, such as wool and silk, allowed for some degree of stretch in fabrics. However, it was not until the industrial revolution and the advent of innovative textile manufacturing techniques that mechanical stretch became more widely available.

One significant milestone was the invention of the circular knitting machine in the late 18th century, which revolutionized fabric production. This new technology allowed for the creation of knitted fabrics that inherently possessed stretch due to the interlocking loops. As the textile industry progressed, advancements in fabric construction and finishing processes led to the development of woven fabrics with mechanical stretch.

Types of Mechanical Stretch

There are various types of mechanical stretch, each achieved through different fabric construction methods:

  1. Warp and Weft Stretch: This type of stretch is created by using stretchable yarns in either the warp (longitudinal) or weft (horizontal) direction of the fabric. The stretchable yarns allow the fabric to expand and contract, providing flexibility and comfort.
  2. Knit Stretch: Knitted fabrics inherently possess stretch due to the interlocking loops. The structure of the loops allows the fabric to stretch and recover in multiple directions, making it ideal for garments that require freedom of movement.
  3. Stretch Woven: Woven fabrics can be engineered with specific yarns, weaves, or finishes to introduce mechanical stretch. This type of fabric offers the aesthetic appeal of traditional woven fabrics combined with the added benefit of stretch.

Tips for Handling Fabrics with Mechanical Stretch

When working with fabrics that possess mechanical stretch, it is essential to consider certain factors to maintain their integrity and performance:

  • Prevent Overstretching: Avoid applying excessive tension or force on the fabric during cutting, sewing, or wearing to prevent overstretching and distortion of the garment.
  • Use Appropriate Stitching Techniques: Select stitching techniques, such as stretch stitches or zigzag stitches, that can accommodate the fabric's stretch and prevent seam breakage.
  • Consider Grainline: Pay attention to the fabric's grainline when cutting and sewing to ensure proper fit and stretch across the garment.
  • Proper Laundering: Follow the manufacturer's care instructions to maintain the fabric's stretch properties. Avoid high-temperature washes or excessive agitation, as they can affect the fabric's elasticity.

Top International Users and Manufacturers

Mechanical stretch fabrics are widely utilized by leading international brands in various industries, including sportswear, athleisure, and outdoor apparel. Here are some of the top users and manufacturers:

  1. Lululemon Athletica: Lululemon is a renowned Canadian brand that specializes in activewear and athleisure garments. They extensively use fabrics with mechanical stretch to provide comfort and freedom of movement in their products.
  2. Under Armour: Under Armour, an American sportswear company, incorporates mechanical stretch fabrics in their performance-oriented apparel. Their focus on innovation and technology-driven fabrics has made them a prominent user of stretch textiles.
  3. Patagonia: Patagonia, an outdoor clothing and gear company, prioritizes sustainability and performance in their products. They utilize mechanical stretch fabrics to ensure mobility and durability for outdoor enthusiasts.
  4. Polartec: Polartec, a leading fabric manufacturer, offers a wide range of performance textiles with mechanical stretch. Their fabrics are used by numerous renowned brands across the globe in sportswear, outdoor gear, and active lifestyle garments.
  5. Invista: Invista, a subsidiary of Koch Industries, is a major player in the textile industry. Their innovative fiber technologies, including mechanical stretch fabrics, are utilized by numerous brands in various sectors.


Mechanical stretch is a dynamic property that enhances the functionality and comfort of textiles. From its historical origins to the various types of stretch fabrics available today, this article has explored the concept of mechanical stretch in depth. Additionally, tips for handling and caring for fabrics with mechanical stretch have been provided to ensure their longevity and performance. The profiles of top international users and manufacturers have demonstrated the widespread adoption of these fabrics in the sportswear, athleisure, and outdoor apparel industries. As fashion and technology continue to converge, mechanical stretch fabrics will continue to play a crucial role in meeting the demands of the advanced consumer.

Mechanical stretch
Fabrics that have stretch properties but no not use spandex or other stretch yarns. The stretch is usually created in the finishing process.

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