AeroZip 1L

Ultra-Light. Ultra-Snug. Zero Distraction. Built for runners who want nothing extra and nothing in the way, the AeroZip delivers a dialed, aerodynamic fit that moves as one with your body. Ultra-light materials, a contoured silhouette, and targeted breathability come together to create a vest that feels fast, secure, and effortlessly comfortable—mile after mile. ULTRA-LIGHTWEIGHT BY DESIGN Premium stretch fabrics and a minimalist construction strip away bulk for a barely-there feel. Every material choice is intentional—light, fast, and built to disappear once you’re in motion. AERODYNAMIC, BODY-CONTOURING FIT A unique contoured design hugs the body for an ultra-snug, locked-in feel that stays put without compressing or restricting movement. The AeroZip moves with you, eliminating distractions so you can stay fully in your stride. TARGETED BREATHABILITY & FLEX Highly breathable, flexible fabrics at the back and sides maximize airflow while maintaining an aerodynamic profile. The result is a vest that stays cool, comfortable, and responsive—even as effort and temperatures rise. HYDRATE WITH EASE Includes two 17oz / 500ml NATHAN x HydraPak soft flasks that are oval shaped to contour the body for a more comfortable fit.