Modular helmets are not typically used in extreme sports due to their lack of protection compared to other helmet types.

Wetsuits are designed to trap a thin layer of water between the suit and the wearer's skin, which helps to insulate and keep the wearer warm in cold water conditions.

A harness is a piece of equipment worn by climbers that distributes the weight of the climber's body across their hips and legs, providing support and safety during a climb.

Ski masks are worn to protect the face from the cold and wind, especially in extreme winter conditions.

Climbing shoes are specialized footwear designed for rock climbing, providing excellent grip and support on various surfaces.

Life jackets are designed to keep the wearer afloat in water, providing buoyancy and preventing them from sinking.

Helmets are essential protective gear for skateboarding, as they help to protect the head from impact in the event of a fall.

Carabiners are used in rock climbing to connect ropes, harnesses, and other equipment, providing a secure and reliable connection.

Helmets are essential protective gear for snowboarding, as they help to protect the head from impact in the event of a fall.

Dry suits are designed to keep the wearer dry in water, preventing water from penetrating the suit and reaching the wearer's skin.

Helmets are essential protective gear for mountain biking, as they help to protect the head from impact in the event of a fall.

Belay devices are used in rock climbing to control the speed of the rope as the climber ascends or descends, ensuring a safe and controlled climb.

Parachutes are essential protective gear for skydiving, as they provide a safe means of descent after jumping from an aircraft.

Wetsuits are designed to trap a thin layer of water between the suit and the wearer's skin, which helps to insulate and keep the wearer warm in cold water conditions.

Life jackets are essential protective gear for whitewater rafting, as they help to keep the wearer afloat in the event of a capsize.