Dance attire can be purchased online through Bloch here: http://us.blochworld.com/quickcode/DGPIWI
Images of uniforms for each level can be found below.

Toddler, Pre-Primary & Primary Levels:
Bloch CL5342 Skirted Leotard (Pink)

Kinderdance & Elementary Levels:
Bloch CL8255 Skirted Leotard (White)

Level 1 & 2 Levels:
Bloch CL5607 Leotard (Black)

Level 3 & 4 Levels:
Mirella M207LD Leotard (Black)

Images from Blochworld.com