The best sun scarf or sun shawl for travel is UPF 50+, which blocks 98% of UVA/UVB rays, large enough to cover your shoulders, head or legs, and light enough to pack in a carry-on. Coolibar's Sanibel Everyday Beach Shawl is our most versatile pick: a 72" x 29" UPF 50+ shawl you can wear over your shoulders or...