What material is used in essentially all of lululemon's products for shape retention?

Lululemon predominantly utilizes Lycra in many of its products for shape retention because this material, also known as spandex or elastane, offers exceptional elasticity and stretchability. Lycra is specifically designed to return to its original shape after being stretched, making it an ideal choice for activewear that undergoes significant movement and stress during activities like yoga, running, and training. Its unique properties help maintain the fit and structural integrity of garments, ensuring that they provide comfort and support while retaining their shape over time.

While polyester, cotton, and nylon each have their own benefits in terms of breathability, comfort, or durability, they do not provide the same level of stretch and recovery that Lycra does, which is critical for the performance-oriented designs Lululemon is known for. This focus on maintaining shape and fit is crucial for the high-performance lifestyle that their products cater to.