Product ID:TOSBNA20032907 Cup type: 3/4 cup Size: S / M / L / XL Applicable scene: Running sports / Fitness equipment / Cycling sports / Sports trend / Fitness body Fabric name: Nylon Is there a steel ring: No steel ring Lining composition: Spandex Error range: 1-2cm Lining ingredient content: 20 Main fabric composition: Nylon Whether it is seamless: No Content of main fabric ingredients: 80 Shoulder strap type: Fixed shoulder strap