Thermo Solid is the second iteration of the Solid series by LotusinHand. This deck features a full solid back made out of thermochromic ink. The technology of thermochromic ink allows the back color to change color from black to chameleon green if heat is applied. The red standard color for the pips and indices of red cards have been changed to chameleon green. The courts main picture is muted to grey. There are two extra cards: one features a joker showing a chameleon in thermo ink, and an ad card showing "GET GOOD" in thermo ink with an instruction of keeping the thermo ink last long on the back.

See a video of the entire deck here: https://youtu.be/OwqyLc2L5vY

This set of playing cards was manufactured by the US Playing Card Company, the same company that produces Bicycle card decks. It was designed by Tony Kuchar using original art by Yoji Shinkawa.