This is a pouch. The softness is both tactile and structural. Fiber (likely polyester) is soft but the lack of internal boning means it too can collapse and be shaped easily. No memory of shape.

Promises extreme softness and delivers beyond what you’d expect.

This is a detergent sheet. It can be bent but it’s designed to break.

The material properties totally changes the use case (travel), sustainability and need for outer packaging and effort required to use.

Film’s form thinness allows it to spool and appear softer than it is.

Delicate appearance = softness?

Cellulose acetate or polyester base - flexible but with inherent stiffness and memory. The polymer wants to return to certain curves. The emulsion coating adds surface fragility and environmental sensitivity (light, humidity, temperature).