The Filament Neck Tube is built with our 94% recycled Thermic™ S fleece. It has stripes of high and low lofting fleece inside, providing warmth in a low bulk and breathable package, ideal for high energy ascents. Comfortable, stretchy, and soft around your neck, it can be stashed in a pocket ready to be pulled on when the wind starts blowing. Weight:28g/0.9oz Product Code:QAB-35 Lightweight fabric with alternating stripes of high and low lofting fleece for warmth in low bulk package with increased air flow Minimised seams Embroided branding 94% Recycled Polyester, 6% Elastane Main Fabric: Thermic™ S (165gsm) Recycled polyester fleece with striped backer