This helmet fits my husband's head perfectly. It could easily fit a teenager also since it has a dial on the back of the helmet that you can adjust easily for a tighter fit around your head. This feature makes it easy to get a custom fit. The chin straps are easy to adjust also. It has a plastic buckle that clips both straps together. It is both lightweight and sturdy on my husband's head. He said he doesn't even feel it besides the chin straps, but even those are still comfortable when he's wearing it. There are four padded velcro strips attached inside of the helmet for added comfort on the top, front, and sides of your head. These velcro strips can also be removed. This helmet is well constructed. The outer layer is plastic and the inner layer is foam. It has 16 flow-through vents on the top of the helmet that help cool you down on hot days. The detachable sun visor works great blocking the sun from your eyes. It also looks cool while wearing it. The visor is easy to snap on and off. The color of this helmet makes it easy to match other riding gear. It is easy to wipe out and clean this helmet. The only downside to this helmet is if you have long hair you can't have it in a high or medium ponytail, it has to be low for this to fit comfortably and safe.

I received the Schwinn Outlook Adult Bike Helmet, ages 14+, black carbon as a participant of the Spark review program. I have never had a helmet that is adjustable and I really like it. Makes sense as they really shouldn't be one size fits all. After I tried it, my daughter who is an older elementary child, I could adjust it to actually safely fit her too. Proper helmet fit should allow 2 finger widths above each eyebrow according to hospital standards. The Schwinn Outlook helmet allows for this to happen as long as the chin straps fit properly as well. It was a great idea to create this design! The visor is removable too. I was concerned if I were to fall it might not bend or break safely if she fell but once we discovered it could simply pop out with a little force and easily pop right back in she actually said, “Mom this deserves 5 stars.” I agree too. This design has the air vents along the top of the helmet so your head won't get too hot and it doesn't seem to compromise safety for this added benefit. Overall I highly recommend the Schwinn outlook adult helmet. It is an excellent product with great benefits that offers stylish protection!