32 x 36 in (Suitable for any size mattress). HaloShield powered. Stops Odors and Kills Odor-Causing Germs: Eliminates the unpleasant, embarrassing urine odors that result from incontinence; Kills 99.9% of odor-causing bacteria within 10 minutes of contact with the HaloShield underpad. Waterproof Protection and Enhanced Comfort: Ultrasoft moisture-wicking top layer keeps users dry; Super absorbent inner layer quickly traps fluids; 100% waterproof protection for bedding and chairs. Money-Saving and Smart: Reliable and effective; Non-irritating for sensitive skin; More economical and better for the environment than disposables. The Smart Choice: Eliminates odors, washable and reusable, environmentally friendly.