An ultra-lightweight helmet for ultimate comfort, the Rev Liv is one of the official helmets for the women ... you’re cycling in the dark (make sure you’ve got a pair of bright lights too).

What you need to know: These rechargeable lights attach easily to bike helmets. What you’ll love: This set of lights is very bright and has three brightness settings. You can use them on hikes ...

They slap reflectors on their clothes, install lights on their bikes, and put on neon yellow vests. Now they can use turn signals like a car. Apple started selling Lumos Matrix helmets in its ...