●【Safety Standards】- The chainsaw safety helmet conforms multiple standard; Hard Hat - Meets ANSI Z89.1 Type I, Class E. Mesh visor - Meets ANSI Z87.1-2015. Ear muffs - Meet ASIN S3.19-1974, EN352-3:2002 by CE. ●【Safety Combination】- This forestry safety helmet system come with mesh visor and ear muffs, low pressure ear muffs for NRR 26dB noise reduction, steel mesh visor protects against flying debris - giving essential protection for face, eyes, ears and head; Besides, comes with detailed installation instructions for easy assembly, adjustable chin strap provide a comfortable fit for all-day wear during forestry work. ●【Reliable Protection】-The chainsaw helmet are made form high-density ABS material, strong and durable, lightweight and comfortable. Provides superior protection for your head from impacts, bumps, and scrapes while performing chainsaw tasks. ●【Adjustable】- The unique adjustable design offers maximum flexibility. Fold up ear defenders can be adjusted vertically and sideways for a comfortable fit; Adjustable metal mesh visor provides a fully free vision both when folded up or down. Provides you with dynamic protection when working with mowing, chain sawing, shrub trimmers. ●【Comfort Fit】- 6 point textile suspension system for improved shock absorption and overall comfort, One-hand ratchet system allows you to adjust the size of the helmet(range 20-25 Inches), guard sweatband with porous mesh provides sweat absorption for added comfort, which all for addition extra security and stability, Bring comfort experience for you.