Now accepting orders for this and other Autism Awareness products! A portion of proceeds from these items will be donated to OAR (Organization for Autism Research).An essential layer for any Game Day! Our New Arm Sleeves are made with sweat-wicking technology to help keep you dry and comfortable while in the field. Benefits: Sweat-Wicking fabric helps to absorb sweat and help keep you dry and comfortable. Form-fitting, flexible sleeve provides abrasion resistance.• Provides insulation and protection for arm• 92% polyester, 8% spandex• Available in 4 sizes: Youth S/M | Youth L/XL | Adult S/M | Adult L/XL Youth Sizing• S/M - 13.5" Length | Wrist - 5" | Bicep - 8"• L/XL - 14.5" Length | Wrist - 7" | Bicep - 8.5"• Wrist and Bicep are measured around, at the un-stretched circumference Adult Sizing• S/M - 15" Length | Wrist - 6" | Bicep - 9"• L/XL - 15.5u" Length | Wrist - 8" | Bicep - 11"• Wrist and Bicep are measured around, at the un-stretched circumference