Scientists and engineers at the US Agricultural Research Service (ARS) have developed a new cotton-flax denim blend that is said to make jeans more comfortable to wear even in summer heat, as they will not feel heavy under the weight of absorbed moisture.

According to a report from ARS, flax is nearly three times stronger than cotton, making it among the strongest natural fibres known. Clothing materials, such as woven denims and knitted fabrics made from these particular cotton-flax blends, could be compared to a new, nonwrinkling form of linen.”

Adding flax to clothing fabric helps keep skin cool partly because the flax improves moisture wicking, and offers air permeability - the ability of fabric to dry quickly. The researchers are also evaluating cotton-flax blends for use in athletic performance and other apparel.