ESS Crossbow ONE GPS Watch weight-defying support and stability for

weight-defying support and stability for the trail

5mm neoprene

they provide reliable impact and puncture resistance without restricting mobility

A lightweight

This smartwatch constantly samples your heart rate3 to help you gauge how hard you work during activities

ESS Crossbow ONE GPS Watch weight-defying support and stability forWhen you try on the Crossbow, you'll discover it's unlike any other ballistic eyeshield. Experience the Tri Tech Fit frame that achieves an amazing universal fit with max comfort and zero pressure points. Then notice the lenses. They won't fog. That's thanks to groundbreaking ClearZone FlowCoat technology, engineered to eliminate fog inside and prevent scratches outside. As you stare down your objective through distortion free ESSOPTICS, you'll see