Leatt Bib Long MTB ThermaFlow 4.0 - Black

Insulating warmth, comfort and storage – made for cold kilometres.

The ThermaFlow 4.0 Bib is built for cool rides when you need comfort, coverage and cargo. Made from Leatt's ultra-elastic WarmYarn with a brushed inner side, it provides insulation without restricting breathability or freedom of movement. The upper area is designed for moisture management under jersey and jacket, while super-soft, ventilated straps sit comfortably from start to finish. The integrated Elastic Interface Chamois is specifically designed for Gravel rides and a semi-aggressive riding position, with dual-density foam and a ventilated front for long-distance support. Two mesh cargo pockets on the back and two on the legs keep essentials within reach, and reflective details enhance visibility in low light. Treated with PFAS-free DWR and made from bluesign® approved materials – your go-to bib when temperatures drop and kilometres increase.

Fit:

• Skin Fit
• 3D-anatomical body shape
• 4-way stretch
• Silicone leg grippers
• Pre-shaped, ergonomic legs

Material:

• Made from super-elastic WarmYarn knit – very good insulation and heat management, with natural anti-static and bacteriostatic properties
• Back of the material brushed for additional insulation
• Very breathable and quick-drying
• Concealed seams with internal overlock stitches for more comfort

Sustainability:

• bluesign® APPROVED material (the gold standard for more sustainable textiles)
• Plastic-free packaging

Weather protection:

• Treated with DWR C0, PFAS(PFC)-free, for more environmentally friendly dirt and water repellency
• UPF 50+ sun protection (blocks 95% UVA and 98% UVB)

Ventilation:

• Top with mesh inserts for maximum airflow
• Super-fine, soft elastic straps with ventilated structure

Storage:

• 2 elastic mesh cargo pockets on the lower back and on the legs

Chamois:

• Elastic Interface Chamois, anatomically/3D shaped for a semi-aggressive riding position
• Dual-density foam and ventilated front
• Made in Europe
• Specifically designed for Gravel riding

Additional features:

• Antibacterial equipped
• Reflective print details
• High-quality zippers from YKK

Sizes:

XS–3XL (28–40’’) (3XL only in Black)