Emergency Bivvy with Rescue Whistle Size:One Size Advanced engineering and design

Advanced engineering and design

Adjust the removable interior divider for a custom fit

this men's hat is built with insulation to keep you nice and warm

featuring CloudLoft insulation for lightweight warmth

Emergency Bivvy with Rescue Whistle Size:One Size Advanced engineering and designThe Emergency Bivvy OD Green with Rescue Whistle will keep you warm and dry in an emergency. Weighing less than 4 oz. and smaller than a soda can, bivvy reflects 90% of your body heat back to you and is sealed to protect you from wind, rain, and snow. Bivvy features an attached tinder cord drawstring for fire starting and a survival whistle. Features Heat Reflective Emergency bivvy reflects 90% of body heat to prevent heat loss and provide life saving