Leatt ThermaFlow 5.0 Women's MTB Jacket with Breathable Warmth and Durability

The Leatt ThermaFlow 5.0 Womens MTB Jacket V26 is a meticulously engineered outerwear solution tailored specifically for female mountain bikers who demand a balance of warmth, breathability, and durability in cold-weather conditions. Featuring a women-specific regular fit with an adjustable waist, this jacket offers a comfortable, flattering silhouette that moves naturally with the rider. Its pre-shaped ergonomic sleeves incorporate 4-way stretch fabric, enabling unrestricted motion essential for technical trail riding. The innovative ClimbVent system enhances temperature regulation by allowing controlled airflow during strenuous ascents, making this jacket adaptable for varying intensities and weather conditions. Whether worn alone or as a mid-layer beneath a shell, it integrates seamlessly into any cold-weather riding setup.

Constructed from a custom double-weave fabric, the jacket combines a windproof and water-resistant outer layer with a ventilated GRAPHENE fleece inner lining, delivering an optimal balance of insulation and breathability. The Ride Adaptive Hood (RAhD) is helmet-compatible and offers three-point adjustment alongside full chin coverage, providing protection without restricting comfort or visibility. Reinforced Deflextion panels on the elbows enhance durability against trail abrasion, while secure pockets ensure essential items remain safe and accessible. Reflective prints and zipper pulls improve visibility in low-light environments, adding a practical safety feature for early morning or dusk rides. This jacket represents a high standard in performance apparel within the Mountain Biking Jackets category.

In addition to its technical merits, the ThermaFlow 5.0 demonstrates Leatt’s commitment to sustainability through the use of bluesign® approved materials and plastic-free packaging. Its PFAS-free DWR C0 finish provides reliable weather resistance without harmful chemicals, ensuring environmentally responsible protection against the elements. This jacket is an essential component of any cold-weather mountain biking wardrobe, delivering consistent performance, comfort, and eco-conscious design.

Key Features & Benefits

• Women-Specific Fit with Adjustable Waist: Ensures a tailored, comfortable silhouette that moves naturally with the rider’s body.
• ClimbVent System: Facilitates efficient airflow management during climbs, preventing overheating while maintaining warmth.
• Durable Double-Weave Fabric: Combines windproof and water-resistant properties with a ventilated GRAPHENE fleece lining for optimal insulation and breathability.
• Ride Adaptive Hood (RAhD): Helmet-compatible with three-point adjustment and full chin coverage for enhanced protection and comfort.
• Reinforced Deflextion Panels: Added durability on elbows to withstand abrasion from rough terrain.
• Reflective Details: Improves rider visibility in low-light conditions, enhancing safety.
• Sustainable Materials and Packaging: Utilises bluesign® approved fabrics and plastic-free packaging, with a PFAS-free DWR C0 finish for eco-friendly weather resistance.

What It’s Good For

• Maintaining warmth and comfort during cold-weather mountain biking sessions.
• Providing excellent breathability and temperature regulation via the ClimbVent system.
• Protecting against wind and light rain with its durable, water-resistant outer layer.
• Ensuring a precise fit tailored to female riders through the women-specific design and adjustable waist.
• Enhancing rider safety with reflective elements for improved visibility in dim conditions.
• Offering practical storage solutions with three secure pockets for essentials on the trail.
• Supporting sustainable riding gear choices through environmentally responsible materials and packaging.

What It’s NOT Good For

• Heavy rain or prolonged exposure to wet conditions without additional waterproof layering.
• High-temperature environments where insulation properties may cause overheating.
• Riding styles prioritising minimal bulk, as this jacket is designed for layering and protection.
• Riders seeking an oversized or loose fit, since the jacket features a regular, women-specific cut.

Frequently Asked Questions

Is the hood compatible with all helmet types?
The Ride Adaptive Hood (RAhD) incorporates a three-point adjustment system and helmet magnet, ensuring compatibility with the majority of mountain biking helmets while providing full chin coverage for protection and comfort.

How does the ClimbVent system work?
The ClimbVent connector allows the front zipper to be partially opened and linked to the fleece inner layer, enabling controlled airflow during climbs. This feature prevents overheating without compromising insulation, maintaining rider comfort during variable exertion levels.

Is this jacket available in multiple sizes or configurations?
Yes, the ThermaFlow 5.0 is offered in multiple sizes and configurations to accommodate diverse rider preferences and body types, ensuring an optimal fit for a broad range of female mountain bikers.

What accessories complement this jacket?
To enhance your riding experience, consider pairing this jacket with performance mountain biking gloves, helmets, and lighting solutions available in our Mountain Biking Accessories collection. These add-ons provide additional protection, visibility, and comfort on the trail.