CinchARENAFLEXWrinkle ResistantMoistureLightweightQuick DryingUV DefenseAll Season WearHot and humid days call for breathable, comfortable and quick-drying CINCH ARENAFLEX shirts. ARENAFLEX shirts are made of lightweight moisture-wicking stretch fabric, providing increased range of motion and ease of movement for every summer activity. They’re a must-have for the sweltering days of summer and all year round.