When we are hiking, having a bandana is always super useful. The ExOfficio Woven Bandana is a woven cotton bandana that is perfect for covering up our face, neck, or head when we are out in the sun and bushes. This bandana is a part of ExOfficio's BugsAway line, incorporating a permethrin treatment into the garment for lasting bug protection. The permethrin treatment wards off mosquitoes, ticks, and other biting insects and lasts up to 70 washes.