Fieldsheer's team of designers and engineers has updated our Phase Hoodie with an ANSI Certified Hi-Vis to feature a lighter 7.4-Volt Lithium-Ion battery which is sure to be appreciated whether you're carrying a heavy tool belt, moving materials, or working in the cold storage industry. Our distinctive hi-vis reflective outer protects construction workers on job sites or roadways where high-vis clothing is an essential part of PPE. Combined with our Mobile Warming Technology the Hi-Vis Heated Hoodie will keep you on the job from morning to dusk without sacrificing warmth or comfort.