These trekking pants are designed for the 3 seasons of spring, summer, and autumn, made with the aim of serious mountain climbing. Made with Cordura nylon stretch material that is stretchy and durable. It has excellent stretch (elasticity) and kickback (restoration), and the gusset on the inseam prevents your feet from rising and provides a stress-free fit. Super water repellent (water repellent) and oil-repellent treatment, so it repels oil stains and dirt from rain, and the sun protection function blocks UV rays from summer mountains. A pocket that can store your smartphone, etc., has been placed on the back of the left thigh so that it is easy to access and does not hinder movement. The slim silhouette is moderately tapered and has good leg control and comfortable trekking. Features: Omni-Shield unique colombias water repellent feature, super water repellent, oil repellent treatment, Columbia exclusive sun protection features "Omni-Shade" UPF50, 4-way nylon stretch material by Cordura, front and back pockets with security zippers, tapered slim silhouette for spring, summer, and autumn seasons.