Kirkland Signature Ultra Soft Diapers in Size 4 are designed for babies weighing 22 to 37 pounds, with 198 diapers per box. These diapers combine premium softness with reliable leak protection, featuring an ultra-soft and breathable outer cover, a super-absorbent core that quickly draws moisture away, and a hypoallergenic liner that is comfortable and gentle on sensitive skin. Up to 12 hours of absorbency helps keep baby dry through the night and extended wear.

Key design features include stay-put strips for a secure, adjustable fit, a pocketed waistband to help contain blowouts, a wetness indicator that turns blue when wet, and a next size indicator to help parents know when to size up. The diapers are dermatest certified for sensitive skin and are made without fragrance, parabens, phthalates, lotions, elemental chlorine, and natural rubber latex. They are not tested on animals.

The packaging uses 20% post-consumer recycled materials for the inner bags, and sourcing is certified by the Sustainable Forestry Initiative (SFI-01644).