Atomic Green is on pre-order and will arrive within 5 days. MDPC Atomic-Green cable sleeving: The medium neon green shade with the perfect balance. Absolutely opaque and still extremely fluorescent with a super fresh appeal and intense contrast. Atomic-Green is the official follow-up version of our traditional Toxic-Green, which we produced from 2008 to 2016. A comparison photo between the new Atomic-Green cable sleeving and Toxic-Green shows you the subtle but effective differences in appearance.