The Skullerz 8955 Lightweight Bump Cap Hat is a comfortable and stylish hat with a ventilated impact-resistant shell for breathable protection against bumps, scrapes, bruises and other minor head injuries. At less than 5oz // 135g (micro brim), this incredibly lightweight bump cap delivers optimal comfort without compromising safety. This bump cap tackles two big challenges workers face in the field: weight and heat. The removable bump cap insert is made of a lightweight but durable h