Kirkland Signature Diapers on Sale at Costco (2022)! by Rhonda September 19, 2022 *UPDATE* 9/19/22. Kirkland Signature Diapers from Costco are made with plant-based materials and are soft, absorbent, and hypoallergenic. These disposable baby diapers have a Wetness Indicator that changes from yellow… 0 FacebookTwitterPinterestEmail
