I believe this to be a Korean brand - Weilakeer

MEASUREMENTS - PLEASE NOTE - Size on pants says "Large" but the elastic waist is tiny, unstretched.

The top fits US size Medium-Large.

Measurements - Flat Lay:

Top

Shoulders - 17.5"

Sleeve - 22"

Chest - 23"

Waist - 25"

Length- 27"

Bottoms:

Waist - 11.5" unstretched / 18" stretched

Rise - 11.5"

Hips - 24"

Length- 37"