balletballet says:

Keep your little ballerina warm with a classic cross over ballet cardigan.  Every ballerina should have one! 

Manufacturer says:

Classic wrap around style long sleeved x-over
Perfect for warming up before your dance class
Ties at the back
Fabric: 100% Acrylic
Size is the chest measurement
Colours: Pale pink, marine blue, lavender, navy, mulberry and black.