* Sealed on all four sides to prevent leakage. Prevent the urine from flowing on the bed or baby body.* Under pads with polymer SPA offer extra absorbency and protection, Highly absorbent, soft fluff fill with SAP* Soft feeling gives the baby a more comfortable sleep.* Waterproof and save your time to clean. Non-skid blue backing.* Ideal for baby home or travel use, get rid of your worrying that dirty the bed or sheets.