Size Guide: Please measure your bust; Please use our Size Chart located in left images. Made of Nylon and Spandex, stretch performance fabric keeps you cool, seamless and soft cups give you non-chafe wearing for a comfortable fit. Special function: 1. High elasticity, with no tightness, provide mid/high-impact bust support 2. All over interlock seams; Thicken Padding Cups; Full line 3. Full mesh openwork design, sweat-wicking through ventilation, greatly reduce the uncomfortable after exercise 4. Thicken padding cups, removable pads, convenient to wash.