Your search for "itsybitsy" revealed the following:
Stacking Header Kit for ItsyBitsy or Teensy
Regular price $2.75These three Stacking Headers alone are, well, lonely. But pair them with our ItsyBitsy boards, and you're in business! Great for putting something a-top...
Adafruit ItsyBitsy M4 Express featuring ATSAMD51
Regular price $27.85What's smaller than a Feather but larger than a Trinket? It's an Adafruit ItsyBitsy M4 Express featuring the Microchip ATSAMD51!...
Adafruit LiIon/LiPoly Backpack Add-On for Pro Trinket/ItsyBitsy
Regular price $9.70If you have an ItsyBitsy or Pro Trinket you probably know it's the perfect little size for a portable project....
Adafruit ItsyBitsy M0 Express - for CircuitPython & Arduino IDE
Regular price $23.35What's smaller than a Feather but larger than a Trinket? It's an Adafruit ItsyBitsy M0 Express! Small, powerful, with a...