100% Stretch Ultra Lite. Quick Dry FabricationPerformance Bias Gusset. Reinforced Pockets. Reinforced Back Panel. Engineered Pockets To Fit Iphone/Android Heavy Duty Phone Cases. Custom Side Entry Pocket Shape For Clip Application. Rear Carpenter Pocket. Double Layer Internal Pocket Bags. Internal Waist Draw Cord. Triple Stitch Construction. Bar-Tacks At Stress Points. YKK Zipper. UV Protection