Finally, some new PJs in 2018.
This soft cloth pajama pants is just by itself / not a set. The Sega Shop online released the pants in 2018 / summer season. They're adults sizes and for men or women so they'll fit anyone. They have an elastic waist & design on one leg. It has classic Sonic as a blue & white outline (white for the black areas of his nose/eyes) & the words "Game On" written down the leg. They're both spelled out in different 'video game' like fonts.
The pants are advertised as either PJs or lounge pants for playing videogames indoors. The design is nice, it's not too busy or too subtle. It takes advantage of the long leg to go very vertical & be unique. (Not just some tee design downsized and slapped on) The pants are 25 dollars in 2018.