Crystal Pastel is a color line of semi-transparent balloons, made by Betallatex, with a subtle hint of pastel color. They are available in a variety of sizes from 5-inch to 24-inch and heart-shaped balloons. 

Kalisan uses the term 'Pure' as part of the title for their line Crystal Pastel balloons line, however, the term has no additional meaning.  Both companies offer similar colors and sizes.

Shop for Kalisan Pure Crystal Pastel Colors

Shop for Betallic Crystal Pastel Colors