ADVANCED STAIN PROTECTION: Nanotex technology creates a barrier of advanced stain protection, protecting the mattress from leaks, spills, stains and odors, WATERPROOF UNDERSIDE: A waterproof backing blocks, wetness and moisture, maintaining a more hygienic and comfortable sleep surface for baby for long-lasting quality and comfort, SUPREME COMFORT: The quilted top provides baby with extra comfort This mattress pad cover is safe for baby's sensitive and delicate skin, ELASTICIZED EDGES: The elasticized edges prevent shifting and sliding, ensuring that the crib mattress pad cover/protector stays on the crib mattress, EASY TO USE AND MAINTAIN: Machine washable and dryer safe for easy cleaning Fits most standard crib and toddler mattresses Size: 52" L x 28" W