Gravel Gear Shudder Bug Long Sleeve Tee Imported Moisture-wicking 60/40 cotton/poly blend is garment washed for softness Treated with Shudder Bug insect-repelling technology, tested and proven insect repellent that is scent free, FDA-approved and good for 70 washes Repels mosquitos, flies, chiggers, ticks, ants and midges UPF-rated for sun protection