TENA InstaDri Air Underpads feature breakthrough technology that helps absorb leakage, reduce odors and maintain dryness. TENA Underpads are disposable chuxs for incontinence to protect your bed or chair. TENA InstaDri Air Underpads are made of a breathable material that allows moisture and excess heat to escape which prevents skin irritation and leakage. The moisture lock controls odor and bacteria. They have a strong, nonwoven backsheet that resists bunching. The soft, nonwoven topsheet provides extra strength against ripping and tearing.