M's R1 Air Zip Neck - 40246 - May Grey SLEEPING BAG • Breathable mesh lining

• Breathable mesh lining

ASTM F2892 electrical hazard standard

Wind and water-resistant

Ultra-lightweight EVA outsole with sawtooth rubber bottom for added traction

it blends cushioned comfort

M's R1 Air Zip Neck - 40246 - May Grey SLEEPING BAG • Breathable mesh liningEngineered for active pursuits, the M's R1 Air Zip Neck delivers lightweight warmth without bulk. The breathable fabric wicks moisture and regulates temperature across changing conditions, making it ideal for layering under jackets or wearing solo during moderate activity. The half zip design offers quick ventilation control, while the fitted cut ensures freedom of movement. Perfect for trail running, climbing, or everyday performance wear.