87% polyester, 13% elastane heathered wicking knit with Coolcore technology, 92% polyester knitted mesh, 8% elastane wicking knit inserts with Coolcore technologyCoolcore is engineered to distribute moisture quickly throughout the garment. As the moisture spreads it will dry faster and keep you cool and comfortableGarment protects against the sun with (50+UPF on body, 25+ on mesh inserts)Wicks moistureHalf-zip pullover style and reflective tapeRaglan sleeves for maxium mobilityTagless label