From game-changing new materials (like moisture-wicking cotton) to evolutionary leaps in engineering (like a rotating helmet for extreme crashes), the avant-garde of 21st-century gear has just one thing in common: a total disregard for the status quo.

There's the gear you want, and there's the gear you need. After much internal debate, we present the 25 products every guy should own.

I am going trekking in Nepal this September? What are essential items of clothing for this trip? Can you recommend the different type of layers that I will need? Saoirse Rooney Dublin, Ireland