JD Glow Cloud 9 is a cool blue with a metallic finish that is permanent and retails for $16.50. In comparison, Wet 'n' Wild Halo Walkers is a cool blue with a metallic finish that is limited edition and retails for $4.99.
Wet 'n' Wild Halo Walkers is 80% similar — it is less shimmery, darker, warmer.