"The first real hands free backpack umbrella." "The innovative trekking umbrella is easily fastened to any standard backpack with hip belt and directed into the wind and rain. Both hands remain completely free"
Determine remaining daylight on your hand. Use this simple trick to measure the remaining daylight without a watch. Count the finger widths between the sun and the horizon. Each finger is equivalent to 15 minutes, with each hand totaling an hour.