Shark: This very light fabric is breathable, ventilated and quick drying to keep your body cool, it provides compression properties to enhance muscle performance while running and biking, and hydrodynamic qualities to improve your swimming. Powermesh inserts: Light and breathable,this skin friendly mesh has very good compression properties to keep you cooldry and to enhance performance. Mesh ESP bra:Provides better comfort in motion and will wick moisture away. 2 angle back pockets. Flat lock seams.