Kirkland Signature Size 1 diapers are designed for babies weighing 8-14 pounds with advanced features for superior comfort and protection. These diapers feature a thin design with faster absorption compared to previous Kirkland Signature models, based on third-party lab testing.

Key features include a pocketed waistband to help prevent blowouts, a super absorbent core to keep baby dry and comfortable, and dermatologically tested materials that are gentle on sensitive skin. The diapers include a wetness indicator that turns blue when wet and a next size indicator to help parents know when it's time to size up.

Made with 20% plant-based materials, these hypoallergenic diapers are free from fragrance, elemental chlorine, and natural rubber latex. The soft, breathable outer cover ensures comfort while providing reliable protection for newborns and infants.