Product Highlights:

1. Extra-large incontinence area: Prevents liquid leakage.
2. Built-in absorbent cotton: Provides more effective water locking.
3. Water locking capacity: Locks at least 2000ml of liquid.
4. Reusable multiple times: Can be used repeatedly, environmentally friendly and cost-effective.
5. Stain and moisture resistance: Protects the mattress and prevents contamination.

The adult diaper consists of three layers. The bottom layer is made of dark blue waterproof material to prevent any leakage. The middle layer is designed to absorb water and can hold up to 2000ml of liquid. The top layer, which is in contact with the skin, is made of soft cotton material to ensure comfort. Additionally, there are two light blue cloths on the sides to secure the diaper to the mattress.

To test the absorbency of the diaper, we can simulate a scenario by slowly pouring 500ml of liquid onto it. After that, we can remove 1000ml of liquid and finally pour another 500ml. Despite these additions and removals, the diaper will effectively absorb the liquid, ensuring that you won't feel wet. This level of absorption allows patients to sleep comfortably throughout the night without any moisture concerns.