Great Lakes Twirling Academy › GLTA Practice Tank GLTA Practice Tank $40.00 Stretch-fit tank with a racerback cut for easy movement. Perfect for practice or training. Size: Child X-Small Child Small Child Medium Child Large Child X-Large Adult X-Small Adult Small Adult Medium Adult Large Adult X-Large Adult XXL Quantity: Add To Cart Added! Stretch-fit tank with a racerback cut for easy movement. Perfect for practice or training.