‎10.79 x 9.17 x 7.17 inches

【Dual Layers Eye Protection Forestry Helmet System】：This forestry helmet kit comes with a ABS hardhat with built-in visor, a pair of adjustable/removable ear protectors, a mesh visor, a customized helmet liner and a customized storage bag, specifically designed to provide impeccable protection for your head, face, eyes and ears, ensuring you can tackle any task with confidence. 【Comprehensive Safety Feature】：High-quality metal mesh face shield can help prevent cuts and scrapes from branches, flying wood chips, and saw dust. Built-in visor enhance eye debris protection.Both can easily slide up or down, allowing for convenient customization based on the worker's needs.A pair of 26 dB NRR earmuffs help block out tool and engine sound noise for hearing protection. The skull cap liner both protects your skin and keeps sweat away from it. Comfortable feelings guaranteed! 【Customize Fit】:Adjustable 6-point suspension system for improved shock absorption and overall comfort.The replaceable egyptian cotton core sweatband with porous coating for maximum sweat absorption make workers comfort fit during whole working hours.Comfortable and convenient chinstrap with molded chin-cup for extra security and stability,also it's easy to remove.One adjustable size fits most. Helmet size range from 53-63cm/ 20.86-24.80 inch.