This Reima BugProof crew sock offers reliable insect protection by repelling mosquitoes and ticks with a durable lemongrass-based finish that stays effective for over 50 washes. This pair is made from 74% organic cotton blended with polypropylene, polyamide and elastane for breathable, moisture-wicking comfort and everyday durability. This elastic crew-length design moves with active play, providing a secure fit that keeps feet dry and comfortable. This subtly lemon-scented treatment is pleasant to humans but discourages insects, letting kids enjoy outdoor play with less worry — protect uncovered skin with repellent lotion and follow product instructions for safe use.