The Type 1 chair is the X frame chair (or stool). These seats use two connected X frames as the structure and they appear in two forms:
- Type 1A - The Folding Stool - X Frame Stools (no back)
- Type 1B - The X Frame Chair - X Frame Chairs (has a back)
Their method of construction and materials are very similar. Beyond using a pair of connected X frames for the structure, they also share the feature of a flexible seat (and back where there is one). The seat and back can be either leather or textiles and if there is a back, it seems to be made of the same material as the seat.