Baseball season is back — and Seo Hyun-sook beat everyone to the lineup.

The look centers on a white sports bra top paired with high-waist shorts. The white base, trimmed with black piping, feels minimal yet architectural. Repeated black trim along the waistband and down the thighs gives the silhouette a sculpted finish.

The real star is the gray knee-highs. Rising above the knee, they hover between leg warmers and stockings, adding a playful, sporty-girl edge to the active set. Worn with white sneakers, they visually lengthen the legs, and a pair of tinted oval sunglasses pulls the whole outfit from athletic to runway-ready.

Don’t overlook the set dressing. The glove, bat, and ball feel staged but natural — the perfect backdrop where Seo Hyun-sook’s cheerleader persona meets pure sports energy.
If you’re planning your spring activewear wardrobe, start with a white sports set and knee-high socks. It’s workout gear — but absolutely not limited to the gym.