Trek's new line of cycling, mountain biking, and commuter helmets feature WaveCel, a revolutionary helmet technology more than 15 years in the making. Picture two egg yolks suspended in water ...

Video of man repairing helmet with tape and superglue raises serious safety concerns. Experts warn against DIY fixes and emphasize importance of proper helmet maintenance.

Developed by researchers at the Universities of Gothenburg and Isfahan, the 3D printed helmet can better absorb shocks than traditional foam-lined helmets by deforming its shape as required.