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Kirkland 1805971 Diaper Review
Our verdict
Kirkland's 198-count bamboo baby diaper delivers an impressive combination of bulk value, eco-friendly bamboo materials, and a solid 4.6-star rating from 1,400 reviews. At roughly $0.30 per diaper for a bamboo-based product, this is one of the better value propositions in the eco-leaning diaper segment.
Check price on AmazonBest for
Value-focused parents who want a large-count eco-friendly diaper with bamboo materials and the Kirkland (Costco) brand's reputation for quality at club-store pricing.
Skip if
Families without a Costco membership or who do not want to commit to a 198-count pack before trialing the product should look for smaller-count bamboo diaper options first.
- Age Range Baby
- Material Bamboo
- Weight 5.4 Kilograms
- Capacity 198 Count
- Pack Count 198 Count
- Priced 50% above the category median ($39.87 across 213 tracked models)
Our scorecard
4.6/5
overall
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Owner rating4.6/5
4.6 average across 1,400 owner ratings
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Popularity3.3/5
1,400 owner reviews, more than most models here
The overall score is owner satisfaction weighted by how many reviews back it, so a high rating from few reviews counts for less. The bars below show where this model stands against the other baby gear and nursery essentials we track in this category on price, popularity and size. Context, not marks against it, and our read of the data, not a lab test.
Overview
Kirkland Signature, Costco's house brand, has expanded into the diaper category with a bamboo-based option that competes against established eco brands at a significantly lower per-unit price. This 198-count pack at $60.00 works out to approximately $0.30 per diaper, which is substantially below other bamboo and eco-friendly diapers that typically run $0.50 to $0.70 per diaper. For families who are already Costco members, this pack size makes economic sense for a baby in a stable size window.
The bamboo material designation is a meaningful differentiator in this category. Bamboo-based diapers are generally marketed as more sustainable, softer, and more breathable than conventional synthetic diapers. Bamboo fibers in the absorbent core or top sheet add a natural-fiber feel that many parents of sensitive-skin babies seek out. At the price point Kirkland offers, this combination of eco material and value is genuinely uncommon.
The 4.6-star rating from 1,400 reviews reflects a positive but not flawless experience. The 50 monthly buyer figure is lower than expected for a Costco product, though this may reflect the fact that many Costco purchases happen in-store rather than online, and the listing's review pool may underrepresent the full purchase base. At 5.4 kilograms, this is a substantial pack appropriate for a family that goes through diapers at a high daily rate.
Pros
- At $0.30 per diaper, this is among the best per-unit values for a bamboo-based eco diaper
- 198-count is one of the largest pack sizes in this category, reducing reorder frequency significantly
- Bamboo material is softer and more breathable than conventional synthetic diapers for many babies
- 4.6 stars from 1,400 reviews reflects strong overall satisfaction
Cons
- Availability is typically tied to a Costco membership, limiting access for non-members
- 50 monthly buyers online is low, though in-store Costco sales may not be reflected in this figure
- A 198-count commitment is risky if the baby is near a size transition
- Bamboo diapers in this price tier may trade some absorbency depth for the material and value combination
Specifications
| Age Range | Baby |
|---|---|
| Material | Bamboo |
| Weight | 5.4 Kilograms |
| Capacity | 198 Count |
| Pack Count | 198 Count |
Performance notes
Bamboo-based diapers are generally noted for a softer feel against baby's skin compared to synthetic non-woven alternatives. In the baby size range, the key performance metrics remain blowout containment at the legs and waistband, and overnight absorbency. The 4.6-star average from 1,400 reviews suggests Kirkland's bamboo diaper handles these core metrics acceptably for the majority of buyers. At 5.4 kilograms for 198 diapers, this is a heavy, high-volume pack suited to families in a stable diaper-use phase.
What buyers say
1,400 reviews at 4.6 stars positions this Kirkland bamboo diaper favorably in the eco-friendly diaper segment. The rating is meaningfully stronger than the 3.8 to 4.3 range of some eco competitors at similar or higher price points, which suggests Kirkland has found a performance baseline that satisfies most buyers. The low online buyer figure likely reflects Costco's predominant in-store purchasing behavior rather than low actual demand.
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Frequently asked questions
Do I need a Costco membership to buy this diaper?
Kirkland Signature products are primarily sold through Costco, which requires a membership for in-store and most online purchases. Some third-party sellers list Kirkland products on other platforms, but pricing and availability vary and may not reflect the club-store value. Confirming the source and seller before purchasing through a non-Costco channel is a good precaution.
How does a bamboo diaper differ from a standard disposable?
Bamboo diapers typically use bamboo fiber in the absorbent core or top sheet, which is naturally softer and more breathable than conventional synthetic non-woven materials. Bamboo cultivation also requires less water and pesticide than cotton. The bamboo component usually does not replace the full absorbent polymer layer but adds a natural-fiber element that appeals to eco-conscious and sensitive-skin-focused families.
Who do I contact with questions about this product?
Reach the BabyCareShop team at [email protected] and we are glad to help.