Junior full-body protective vest for serious mountain biking. Rigid chest shell, 3DF flexible back protector, integrated shoulder and elbow protectors. Certified EN1621 levels 1 and 2.

LEATT Junior 4.5 Hybrid Jr Full Body Protection Vest — Level 2 full protection for young mountain bike riders

The LEATT Junior 4.5 Hybrid Full Body Protection Vest in black is the go-to choice for young mountain bikers seeking serious protection without sacrificing comfort. This hybrid vest combines a removable rigid chest protector and a flexible back protector to offer complete coverage of the torso, shoulders, and elbows, with a fit designed specifically for junior body types.

Protected areas

The 4.5 Hybrid Jr vest provides comprehensive protection for the torso and upper limbs. The chest features a removable rigid chest protector held in place by an elastic chest strap. The back is covered by a flexible, contoured back protector. The shoulders and elbows are protected by armor integrated directly into the zippered suit. This complete system offers full protection over all impact-prone areas during mountain biking.

Construction and shock absorption

The 4.5 Jr's hybrid design is based on two complementary approaches. On the chest, a rigid chest shell provides maximum resistance to direct impacts, reinforced by FlexMesh Pro technology, a lightweight and ventilated polymer cellular structure. On the back, the soft 3DF foam naturally conforms to the rider's shape for constant and comfortable contact, while effectively absorbing shocks. The shoulder and elbow protectors feature a ventilated rigid shell, designed to allow a full range of motion without restricting the rider. The central suit is modular, odor-resistant, and zip-off.

Leatt Technologies

The 4.5 Hybrid Jr vest incorporates two of Leatt 's flagship technologies. FlexMesh Pro technology structures the chest protection with a cellular polymer architecture that absorbs impacts while ensuring excellent airflow around the chest. The 3DF foam, used in the back and chest areas, is a lightweight, impact-absorbing foam known for its flexibility, ventilation, and ability to adapt to the body's shape during movement. The integrated BraceOn system allows for a precise fit with a compatible neck brace, for young riders who wish to pair a Leatt neck brace with this vest.

Certification and level of protection

The Junior 4.5 Hybrid Jr Full-Face Protective Vest meets the strictest European standards for mountain bike protective gear. The chest protector is certified EN1621-3 Level 2 , the back protector meets EN1621-2 Level 2 , and the shoulder and elbow protectors comply with EN1621-1 Level 1. These certifications guarantee verified shock absorption performance that meets international safety standards.

Comfort and breathability

Designed specifically for young riders, this vest prioritizes both protection and comfort. The zip-up suit is modular and can be worn directly against the skin or under a jersey, depending on preference. The FlexMesh Pro and 3DF materials are both ventilated, promoting heat dissipation during exertion. The elastic chest strap keeps the removable chest protector in place without constricting it. The flexible 3D design of the joints preserves freedom of movement in the shoulders and elbows, essential for active and committed mountain biking.

Product information

• Brand : Leatt
• Range : Mountain Bike Protections
• Gender : Male - Unisex
• Sizes : S/M 134-146CM / L/XL 147-159CM