In the past few years, we have covered plenty of amazing chess sets here. The DURINATO Stacking Chess Set is also worth a look. It has a compact, portable design. The king stands 11.7mm while the pawn is about 5mm tall. Most of these pieces have an outer diameter of 30mm.
Your chess pieces can be stored vertically. You can order this set with a fabric, silicone, or leather chess board. This project is currently on Kickstarter.