Keep up with fall weather—slip on sleeves! Thumbholes and non-slip grippers keep these in place for a boost of moisture-wicking warmth whenever you need it.  Quick n’ Fit: 89% polyester & 11% spandex Super soft, lightweight & quick-drying Silicone grippers at arm opening UPF 50 rating Thumbholes SM/MD 9" around at the bicep, sleeve length 20.5" LG/XL 10" around at the bicep, sleeve length 21" Machine wash cold, tumble dry low, don't bleach, mmkay? Designed in California, made abroad