Klein Tools Non-Vented Premium Karbn Pattern Class E Hard Hat Innovative Suspension - No Straps Needed The Klein Tools 60345 Karbn Hard Hat is a stylish, full brim hard hat with multiple safety standards met to comply with a range of job sites and environments. This hard hat is equipped with an innovative suspension system so no bulky straps are required to keep it securely on users heads. The four point suspension system is made up of a padded top liner and sweatband that are completely adjustable, washable, and replaceable. The system has a pivot adjustment as well as a ratchet adjustment knob at the back of the hard hat for one-handed tightening and a confident fit. Slots and Mounts This hard hat has a sleek design with a proprietary Karbn pattern as well as a customizable outer layout. Klein Tools wants to make sure that users are prepared for any job, so they have provided slots for accessories, additional safety equipment and a mount for an optional headlamp. Never use zip ties and tape to hold on accessories or lights again!