Built for cold starts. This form-fitting winterweight base layer pairs a soft, brushed interior with advanced thermoregulation to keep you warm on cold mornings - without overheating as you work. Breathable carbon fiber mesh zones target airflow and odor control, while friction-free stitching offers comfort through every session. FEATURES Winter-weight, lightly brushed, sweat-wicking fabric regulates body temperature Strategic ventilation zones Breathable, anti-odor carbon fiber mesh (C6SL:Mesh) underarm panel UPF 50+: Liquid titanium performance fabric is rated 'Excellent' by Australian rating standards: AS/NZS 4399 Flat lock stitching to prevent chafing Raglan sleeves built for full range through shoulders Curved hem and clean finishes for added coverage Reflective 776BC logos for enhanced visibility