The flagship Black Label Bib Shorts from GRC. Built with Thunderbike Power technical fabric & Italian Elastic Interface chamois, engineered for all-day long-distance road cycling.
GRC Black Label Bib Shorts
The Black Label represents GRC’s flagship top-tier cycling collection. Every detail is refined for elite long-distance riding performance, balancing relentless durability, targeted muscle compression and all-day saddle comfort.
Thunderbike Power is a technical fabric developed by Stip for high-performance sports. Constructed from high-density yarns, it delivers durable, robust muscular support alongside outstanding durability and abrasion resistance. Paired with the premium Elastic Interface chamois, it delivers reliable comfort for long-distance cycling rides.
Performance Ratings
- Stretch: High
- Abrasion Resistance: High
- Wind Resistance: Medium
- UV Protection: High
- Recommended Temperature Range: 15°C – 35°C
Available Colors
50 Tone Gray | Black | 30 Tone Gray
Fabric & Construction
Fabric Composition: 80% Nylon, 20% Elastane
- One-piece Seamless High-Stretch Shoulder Straps
- Abrasion-Resistant Technical Yarn
- Elastic Interface Long-Distance Chamois Pad
- Seamless Contoured Leg Cuffs
Core Functional Features: Moisture Wicking | Breathable Fabric | Reflective Material | Anti-UV | Muscle Compression
Fabric Tech: Thunderbike Power
Thunderbike Power fabric combines high stretch, excellent compression support and superior abrasion resistance, purpose-built for high-performance endurance cycling.
Elastic Interface Chamois Pad | Made in Italy
Designed specifically for long-distance cycling, this ergonomic high-density chamois delivers a secure, stable fit to maximize riding comfort.
Eco-friendly construction formulated with 65% plant-derived materials to deliver lasting comfort and sustained support.
- 75% Ultra Soft Preambic EA Based Foam
- 120 kg/m³ Polyurethane Foam
- 80 kg/m³ Perforated Polyurethane Foam
Product Highlights
- One-piece Seamless High-Stretch Shoulder Straps — Lightweight, breathable construction reduces shoulder pressure during long hours in the saddle
- Raised anti-slip silicone dots on leg cuffs — Secure grip without bulky friction or uncomfortable pinching against skin
- High-visibility reflective detailing — Boost safety for dawn, dusk and nighttime riding
