S1 Helmets makes a wide variety of different BMX Helmet styles from our vintage BMX helmet, the Retro Lifer, to a more traditional half shell BMX bike helmet the Standard Lifer. S1 is focused on making cool BMX helmets and BMX protective gear that kids and enthusiasts are stoked to wear. No matter what you are looking for you can be sure that S1 makes the best BMX helmets.