SanSoleil SolCool UV 50 Plaid Polo - UV 50 Protection:Permanent UPF 50 Sun Protection. Never washes out. - Permanent Cooling:SolCool with Jade Nano Fibers Reduce Body Temperature by 5%. Never washes out. - Wicking and Quick Dry:SolCool with Jade and Copper Nano Fibers Promote Quick Dry and Easy Care. - Easy Care:SolCool is extremely lightweight, yet can be washed and dried in regular cycle.