Defend the Den. The Detroit Lions Rivalries Collection Sideline Velocity T-Shirt is a tribute to Detroit's refusal to surrender and the fierce pride it takes in creating a homefield advantage. Lightweight polyester combined with sweat-wicking technology helps keep you cool and dry. Benefits:Nike Dri-FIT technology moves sweat away from your skin for quicker evaporation, helping you stay dry and comfortable. Jersey fabric has a soft, lightweight feel. [] Product Details:100% polyester. Machine wash. Imported. Style: 02ER00A9J; Color: Black; Size: S; Gender: Male; Age Group: Adult | Detroit Lions Rivalries Collection Sideline Velocity Men's Nike Dri-FIT NFL T-Shirt in Black, Size: Small | 02ER00A9J-B3C