The portable balance seat is a functional sitting cushion created based on honeycomb technology, the most stable architectural structure. Vetagel that is on the inside has high elasticity material applied that is based on ergonomic form, in consideration of the user, and disperses the user’s body pressure. The air pumping effect due to the honeycomb structure maximizes the product’s air permeability. The portable balance seat has mesh fabric cover for breathability and non-slip fabric to prevent sliding. Its folding structure is great for convenient carrying, and it weighs less than 800 g so it can be carried easily and used anywhere.