Once you run with a UA Speedpocket, you’ll wonder how you ever ran without it. It expands to hold even a plus-sized phone, keeps it secure, and won’t let it bounce. Expandable center-front waistband pocket is water-resistant & keeps your phone secure, with no bouncing. Heat Gear fabric is ultra-soft & smooth for extreme comfort with very little weight. UA Microthread fabric dries fast, won’t cling, stretches without absorbing sweat & is recyclable. Material wicks sweat & dries really fast. 4-way stretch material moves better in every direction. Ribbed panels for added stretch & comfort.