The Technical Transport Base Layer Top is developed as a thermal regulation component within the GR10K clothing system, designed to function as a first layer beneath workwear, protective outerwear and technical garments. Drawing on the construction principles of performance underwear and occupational base layers, the garment combines lightweight insulation, moisture management and adaptable stretch within a close-fitting silhouette.

Constructed from a technical polypropylene blend, the long-sleeve top features engineered knit structures with contrasting ribbed and mesh-textured panels positioned across the shoulders, sleeves and torso. The polypropylene-rich composition supports moisture transport and thermal regulation, while polyamide and elastane provide structural stability and flexibility. Raglan sleeves and a crew neckline allow the garment to sit comfortably beneath additional layers without restricting movement.
A contrasting vertical technical panel extends down the centre back, while integrated GR10K branding and composition detailing at the hem reference the garment's material construction. Developed as part of a wider modular clothing system, the base layer provides an adaptable foundation for changing environmental conditions and occupational requirements.

Main Fabric
Technical Polypropylene Blend
87% Polypropylene / 10% Polyamide / 3% Elastane

• Technical Thermal Base Layer Construction
  
• Lightweight Insulating Knit
  
• Moisture Management
  
• Thermal Regulation
  
• Engineered Ribbed Knit Panels
  
• Contrasting Technical Knit Structures
  
• Raglan Sleeve Construction
  
• Crew Neckline
  
• Close-Fitting Silhouette
  
• Stretch Construction
  
• Contrasting Vertical Back Panel
  
• Integrated GR10K Branding
  
• Composition Detailing at Hem
  
• Modular Layering System
  
• Designed for Use Beneath Workwear and Technical Outerwear