The prana keller long sleeve crew is travel-friendly, courtesy of a wrinkle-resistant blend. Pull it out of your duffel for comfortable warmth as the sun sets on your next camping trip. Fair trade certification supports better working conditions for the factory workers who make it through investment of a premium of each item sold going into social development projects. 57% polyester and 43% organic cotton. Jersey knit crew with quick drying blend of polyester. Rugby stripe layout options. Standard fit. Material: Polyester, Organic Cotton.