UA Storm technology repels water without sacrificing breathability|Expandable center-front waistband pocket is water-resistant & keeps your phone secure, with no bouncing|Durable, lightweight, stretch-woven fabric is smooth & comfortable|4-way stretch material moves better in every direction|Soft knit waistband for added comfort|Secure, zip hand pockets with right-side interior media pocket|Left side pocket designed to fit packable vest internally or externally for easy carry|Uses a fluorine-free water repellent treatment