The G-FORCE GF3 helmets provide a new benchmark in quality, functionality and style. From the outside in you will notice the difference. The outer contact shell is made from a low density, Z38 lightweight composite blend. The shell is coated with high quality paint and finished with a protective clear coat outer layer. The rear of the helmet is accented with double ridge lines that add both style and strength to the GF3 s shell. Reinforced mounting points for helmet restraint systems are built into the shell during production for added durability. The G-FLOW Ventilation System siphons air into the chin bar ports, around the heated interior and siphons out the top and rear vents to aid in cooling. An optically correct, .125 thick, ProFit Shield encloses the extra wide eye port opening and secures to the rubberized, eye port gasket to keep dust and dirt out. The ProFit shield is held in place by two aircraft aluminum, wide-head bolts for easy change-out and removal. The thumb indention makes lifting the shield, even with gloves, simple and clean. The pivot kit contains 5 shield ratchet positions so that the driver can adjust to their liking. On the inside, G-FORCE Racing Gear has produced the most user friendly, comfortable helmet on the market. The heart of GF3 helmet is the G-78 impact liner. The G-78 impact liner is covered by a soft knit, hypoallergenic, padded CoolTec, flame retardant liner for comfort and fit. A SpecFit Channel has been added to secure placement in the use of seeing or sunglasses. The chin strap in the GF3 helmets is bolted to the shell with stainless hex-head bolts and is made from durable, flame retardant para-aramid webbing.