Tila Cool Arm Sleeves with Anti-Slip, UV Protection for Adult Unisex Tila cool sleeves are made of 82% polyamide/18% spandex Tila UV protection sleeves can protect your skin from UV Due to anti-slip design, Tila arm sleeve are perfect for out sports and make you feel cool during gardening. Tila arm covers provide the best air permeability. Package included: one pair(2 pieces)