Pants

Durability:

 Trousers endure a lot of wear, so opt for fabrics that are strong and durable. Choose relatively densely woven materials for added strength.

Shape Retention:
 Fabric should maintain its shape over time. Look for natural stretch and good elastic recovery to prevent bagging out in the knees or seat.

Wrinkle Resistance:
 Pants need to withstand movement without excessive creasing. Thicker fabrics or those with synthetic fibers tend to be more wrinkle-resistant.

Breathability:
 Consider the climate. Natural fibers like cotton and linen are breathable, while synthetic options like polyester offer durability.

Weight:
 Fabric weight affects drape and feel. Heavier fabrics work well for casual trousers, while lighter ones are suitable for dressier styles.