New Balance Heat Grid Vest Men's Experience next-level comfort on your runs in the New Balance Heat Grid Vest! This men's running vest is equipped with NB HEAT technology, heat grid fleece and a wind-resistant woven front body to capture warmth and wick moisture. Zippered hand pockets offer extra storage space, while a stand collar and dropped back hem add style and coverage. Athletic fit built to skim your chest, waist and hip – perfect for active movement with a not-too-tight fit. Dropped back hem for coverage and style Full-zip front for effortless style NB HEAT technology traps warmth while wicking away moisture Reflective branding on chest and back of neck Stand collar for added coverage Wind-resistant woven front body Sizing Small: 35-38" chest Medium: 38-41" chest Large: 41-44" chest X-Large: 44-48" chest *Measurements refer to body size, not garment size.