5 of the best sports sunglasses

For distance running: Nike Max Transitions Speed

We’re kicking the shortlist off with a Nike x Transitions Opticals special: the Nike Max Transitions Speed. Transitions Optical has 20 years’ history in photochromic lens technology, which basically means adaptive lighting.The Transitions come in three lenses (Speed, Outdoor and Golf), but all adapt to lighting conditions. The Speed however, features a red tint to eliminate road glare and allows calming red light in to help with endurance running.

£176, nikevision.com/transitions