UPF 50 neck gaiters block over 98% of UVA/UVB rays. Choose a lightweight, 4-way stretch fabric that stays cool during sweat-heavy activity. Coolibar, based in Miami, FL, designs styles like the Key West Sun Neck Gaiter (from $32) offering adjustable, breathable coverage for hiking, cycling, or everyday errands. Key Takeaways Coolibar UV face masks and neck gaiters block over...