WPC Tiny Back Protect UV Protection Water Repellent Folding Umbrella 50cm (Khaki X Black)? The back of the umbrella extends when opened! The longer back provides excellent protection for your neck and back from the sun . Its special design ensures ample coverage. When opened, the umbrella expands 10cm further, providing excellent protection for your neck and backpack from the sun and rain. ? The square shape maintains its compact size when folded, making it easy to store in a small bag. The zippered case makes it easy to access. Available