We've all been out there in the streets, pedalling away, when all of a sudden, a stinging drip of sweat slides down and burns the hell out of your eye. It's not a good feeling. Staying cool in the summer is key, and even the breeze of riding on a bike usually isn't enough. And that's probably because there's a giant styrofoam cap on your head keeping all of that heat in, ensuring that, when you take it off, you look like you just got out of the shower. 

Bern's new vented Allston bike helmet is here to help. It's got 16 vents, it's extremely light (13 oz.), it has a removable liner for adapting to all seasons, and it even has a little bill. For $89.99, it can be yours. 

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[via Bern]