Knitted underwear should ensure a comfortable experience when worn. The fabric needs to have good elasticity to adapt to various body movements and provide good freedom of movement. The fabric should also have good moisture absorption and breathability to keep the skin dry and comfortable. In cold seasons, the fabric needs to provide sufficient warmth retention. Therefore, there are many requirements for underwear fabrics, and there are many commonly used fabrics as follows：
1.Cotton
Cotton fabrics are soft and breathable, making them ideal for close-fitting underwear. Cotton-spandex blends are especially popular for adding elasticity, ensuring a snug and comfortable fit. Suitable for making daily underwear with high comfort and good breathability.https://www.ultratextile.cn/category/custom-order-fabrics/cotton-fabric/
2.Natural fiber fabrics
Natural fiber fabrics such as bamboo fiber, silk, modal, etc. are silky, soft, moisture-absorbent and breathable, and lighter than ordinary cotton. Bamboo fiber fabrics have good antibacterial, breathable and moisture-absorbent properties, feel delicate and smooth, and have good environmental performance. Suitable for underwear for sensitive skin.
3.Spandex/Lycra
Spandex has excellent elasticity and high strength, and is resistant to acid, alkali, sweat and abrasion. Lycra is a type of spandex that has high stretchability and the ability to fully recover to its original shape. It is often used in underwear to make the underwear elastic, close-fitting, and not easy to deform or wrinkle.
4.Nylon
Nylon fabrics are lightweight, soft, and durable, with good elasticity and breathability. It’s commonly used in performance or athletic underwear, helping to keep the body dry.
5.Polyester
Polyester is durable and wrinkle-resistant, often used in functional underwear. It dries quickly, making it ideal for high-intensity activities, though it’s less breathable than natural fibers.
Choosing the right knit fabric for underwear based on personal preferences and specific needs can significantly enhance comfort.