Material type:NylonBatteries included?:NoDepartment:UnisexProduct Dimensions:31.4 x 22.7 x 4.7 cm; 140 GramsSpecification:Material: NylonColor: Black and YellowPackage Size: about 31.4*22.7*4.7cm/12.36*8.94*1.85inPackage List:1 * Chest Harness Front PackAbout this item Adjustable: With adjustable shoulder straps, no matter what size you are, you can wear this chest pack, unisex.Applicable occasions: Production workshop, construction site, dangerous place, portable carrying walkie-talkie equipment and various operating tools.Universal: Originally designed for ski patrol and mountain rescue, this single size fits all radio harnesses will be adjusted immediately to keep any size radio attached to your chest.Reduce Injuries: Improve the reception in the vertical direction of the device, extend the life of the antenna, and reduce the chance of chest injury when falling.After Sales Service: If you have any questions during use, please contact us as soon as possible, and we will provide you with professional answers.Adjustable: With adjustable shoulder straps, no matter what size you are, you can wear this chest pack, unisex.Applicable occasions: Production workshop, construction site, dangerous place, portable carrying walkie-talkie equipment and various operating tools.Universal: Originally designed for ski patrol and mountain rescue, this single size fits all radio harnesses will be adjusted immediately to keep any size radio attached to your chest.Reduce Injuries: Improve the reception in the vertical direction of the device, extend the life of the antenna, and reduce the chance of chest injury when falling.After Sales Service: If you have any questions during use, please contact us as soon as possible, and we will provide you with professional answers.