Stay safe - Stay hydrated! From the leader in industrial worksite hydration for over 60 years, Igloo Gear High Visibility Safety Hydration Vests provide ready worker hydration—helping to keep users healthy and on the job. Constructed of ANSI 107-2004 Class 2 compliant high visibility and reflective materials, these vests make workers more visible to oncoming traffic and potential workplace hazards. The 2.0L capacity reservoir provides approximately 2 hours of worker hydration.