Which of the following functions should the gloves worn by a motorcyclist primarily perform?

The primary function of motorcycle gloves is to protect the hands, which, in the event of an accident, are instinctively used for defence and are therefore most vulnerable to injury. The knuckle reinforcements visible in the photograph and the durable, abrasion-resistant material are designed to minimise the effects of impact and abrasions against the road surface, which is their primary function. Other functions, such as improving grip or providing protection from weather conditions, are secondary to ensuring safety.