OXBALLS CORE / BALLSTRETCHER CellBlock 13 and a smooth structured feel

and a smooth structured feel that holds its shape through training and beyond

Stay cool and stylish all season long with this quirky and playful tank

This pair feels like nothing but it's giving everything—seriously

Geometric perforations and elongated diamond cutouts create dimensional movement and breathable airflow—perfect for layering over a fitted tank or going shirtless when the moment calls for it

OXBALLS CORE / BALLSTRETCHER CellBlock 13 and a smooth structured feelMeet COREthe ballstretcher built for serious fun. Engineered with outer ribs that deliver a satisfying, springy stretch, CORE keeps you stretched low and proud with a smooth hourglass inner sleeve that grips exactly right. Inspired by the bestselling SQUEEZE design, CORE wraps your package with a medium firm squeeze that feels amazing. The padded grip in the middle gives you that perfect bag squeeze, while the inner hourglass shape stays locked in