ANSI Certified: Yes | Adjustable: Yes | Brand Name: 3M | Chin Strap: No | Color: Yellow | Impact Resistant: Yes | Insulated: No | Low Profile: No | Material: Polyethylene | Number in Package: 1 pk | Packaging Type: Bagged | Size: One Size Fits Most | Suspension Type: 4-Point Ratchet 3M Hard Hats are engineered to provide comfort, protection, balance and stability to help keep DIYers and professionals safe. 3M Non-vented Hard Hat with Ratchet Adjustment for custom, on-head sizing. Suspension sits lower on the head to reduce pressure points and increase security. Features a smooth-turning 4-point ratchet suspension system and provides optimized comfort with 3 levels of height adjustment. Part of the 3M Pro Series Safety Products line, this hard-hat was designed for the way pros think, the way they shop and the way they work. | Ratchet adjustment for custom, on-head sizing | Three levels of height adjustment promote optimal comfort | Suspension system sits lower on your head to reduce pressure points | Low-profile design enhances stability for balanced comfort | Short brim is great for upward visibility | Breathable, foam brow pad enhances comfort | Meets the requirements of ANSI/ISEA Z89.1 type 1, class G and E