This hard hat liner from 3M is designed to provide a snug fit for comfortable and secure protection on the job. The bright yellow color ensures high visibility, while the ratchet suspension system allows for easy adjustment to fit different head sizes. The hat is made of durable plastic and is part of the H-700 series. It is ideal for use in various industries, including facility maintenance, safety, and personal protective equipment. The 3M brand is known for its quality and reliability in providing top-notch safety gear for workers.