It's very lightweight and comfortable. Plenty of airflow. Easy to to adjust straps and headband ranging from small to a big fathead like me. Came with TWO clip-on sun visors and a nice carrying bag which I think is pretty cool and useful. The rear-facing red safety light has four settings: off/steady/flashing/pattern. I was able try them immediately because the the helmet came with a pre-installed battery! PLUS, the seller included an extra one. Came with instructions.

I wanted an inexpensive helmet made with essentially the same materials the expensive ones are made from (I remain convinced these are largely equivalent/commodity items using the same foams with similar thicknesses and coatings of similar material, almost regardless of price). I first ordered a 'MOON Adult Bicycle Helmet Lightweight 22 Vents Dial Fit System...', but it wasn't going to fit my giant head, just like fitted caps almost never do. So I returned the MOON and tried this 'KINGBIKE Ultralight Bike Helmets' in beautiful, dare I say breathtaking white. Like white white. And it fit my noggin. Better, the straps seemed better placed than the MOON's (although I didn't fiddle with the MOON's straps much, since it was immediately clear my head wouldn't fit), and the KINGBIKE's straps were made of vastly superior and thicker material, judging by feel alone. Even if the sizing was equivalent, I have no doubt the KINGBIKE would be much more comfortable to wear, overall. The little flashy light thing isn't a gimmick to me, and while it may see no or limited use, I appreciate the ability to increase my visibility, should I venture out close to roads in the dark. Great helmet at a great price, and it fits my giant head. Sweet.

In the hot Texas summer heat, I need to ride either early morning or late afternoon. I'm not a morning person, so I start my ride about 90 minutes before sunset. The ride back home is into the low-hanging sun. I wish I had purchased a helmet with a visor a long time ago. It's a huge improvement. As far as I'm concerned, it's now a must-have.

A very nice feature in the helmet is netting over the front ventilation holes inside the helmet. For many years I've always worried about getting a "bee in my bonnet"--or even worse, a wasp. Luckily it's never happened but it's always something I worry about. I always wondered why helmet manufacturers never include this feature. This helmet has it.

As for fitment, my head measures 56 cm, which puts me squarely into the M/L size. The M/L was too small. I replaced it with the L/XL, and oddly enough it initially felt too small until I noticed that the thumb wheel was adjusted with the straps all the way in. Loosening the straps made the difference. I wonder now if the M/L was also tightened up all the way. I wear a headband inside the helmet anyway, so the L/XL works fine. But, just a word of warning to make sure you loosen the straps before you conclude that the helmet is too small.

It's nice that the manufacturer added a light, but I'm disappointed that they didn't make it rechargeable. I can't believe a button battery is going to last very long even in flash mode. If the light had been rechargeable, I would have rated the helmet 5 stars.

purchased for youth. It is adjustable and fits perfectly. The safety light in the back has 4 settings, fast blink, slow blink, solid on, and off. The only issue is one of the pegs for the visor connection broke off when it was dropped (it is for a youth so being dropped is expected). However, it will be just fine without the visor (once the remaining pegs break off - there are two on each side).

I wear a 3XL motorcycle helmet - yeah ... a fat head. I ordered this after reading the Amazon customer's "fat head" reviews, figuring - why not... it's inexpensive and might fit, but prolly not.
Amazon flew this helmet overnight from Arizona to Iowa and was on my step at 6:50am the next day (don't see how they made any money on this transaction, but oel)
Opened and pulled the helmet out of the plastic bag. I cranked the rear adjustment to the really fat, widest opening position. I anticipated the worst ... figuring it's gonna fit tight, just wonder how tight.
WOW! To my surprise, I had to make it smaller several clicks on the adjustment! I'll be damned!
It's lightweight, fits my head, and is not very expensive. I am pleased.
The rear facing red LED ... um, yeah. Might be okay at midnight out in the darkest country, but for daytime use, it's pretty cheesy ... but then again, I didn't buy it for the blinkie, but for the fit.