Strive Ultra Light is the most lightweight and slimmed down trail running vest from Silva. It’s your best companion for faster runs and races. This running vest is made of breathable and light mesh fabric for optimal ventilation and great sweat transportation. Run free with this super slim running backpack.When speed and seconds matter, details matter too. The Strive Ultra Light running vest has four pockets in the front for easy access to your essentials while maintaining your speed. Two of the front pockets are made for Silva soft flasks (not included), secured with compression straps. The other two pockets are perfect for gels and bars – and your waste when you are on your home stretch. There are also two pockets on the side; one in mesh and one zippered. These will keep your phone safe (the zippered pocket is waterproof) and also fit a pair of gloves, a beanie, compass, gels and bars. The back pocket is medium sized and can be used for that extra jacket or a headlamp battery.The Strive Ultra Light is a low weight running pack but with great comfort. The double sternum straps ensure a flexible and comfortable fit and the pack is breathable thanks to the mesh fabric. The materials and features are high quality so thus running vest will last for many runs and many miles. Hand wash your Strive Ultra Light running pack after a sweaty run – and use the simple hanger for a quick dry and get ready for the next run!This running pack also has a whistle for emergency situations, and reflective details for great visibility when running in the dark. It is prepared for headlamp integration with cable outlets from the back pocket.Low weight! This running backpack weight starts 139 grams (depending on size).Comfortable fit: Double sternum straps for a flexible and comfortable fit.Easy access pockets: There are 4 pockets in the front – and more on the side and on the back.Made of breathable mesh fabric: Optimal ventilation and sweat transportation.Safety details: This running pack has a safety whistle and reflective prints for great visibility.Activity Type: MultiActivity Type: Outdoor: Running (CMS)Age Group: Young AdultAge Group: AdultOriginal Colour by Producer: BlackColour: BlackMade in: VietnamGender: Unisex: Unisex (CMS)Size: L/XLWeight: 178 gSelect Size: LSelect Size: XL: Adult (CMS): BackpackPackage Contents: WhistleSpecial Features: Ergo-fitSpecial Features: LightweightType: RacingType: TrainingWeight (g): 178.0