Microplastics have been found in human blood, breast milk, and newborn lungs. We are doing something about it.See the research →
Plastic-Free Rating
Boys Underwear
Boys Underwear·Primary

Boys Cotton Underwear (5-Pack)

C
PFR Grade
Fair — some plastic content or limited transparency
GOTS-certified organic cotton with no synthetic materials. Primary is a children's clothing brand focused on simplicity and chemical safety.
PFR Approved

GOTS-certified organic cotton underwear for boys. Simple designs, no synthetic materials.

Score Breakdown

How scores are calculated

Materials (40%): How plastic-free the product is — raw materials, construction, and coatings.

Packaging (20%): Is the product packaged in plastic? Is it recyclable?

Transparency (20%): Does the brand disclose ingredients, sourcing, and manufacturing?

Durability (20%): How long does it last? Longer-lasting products reduce plastic waste over time.

Materials
9
Packaging
8
Transparency
8
Durability
8

Brands cannot pay for higher scores. If you buy through our link, we may earn a small commission at no extra cost to you.

Last updated: April 6, 2026

Share:X / TwitterFacebook
High Exposure Risk — Why This Product Category Matters

Underwear is in direct, prolonged contact with some of the body's most sensitive and absorptive skin. Synthetic fabrics release microplastics and phthalates through dermal absorption. For children, whose skin is thinner and more permeable, this exposure is particularly concerning.

Why We Recommend This Product

Primary makes simple, well-made organic cotton children's clothing. GOTS certification ensures chemical safety. A good option for parents who want organic without premium pricing.

Was this rating helpful?

Stay Informed

Get New Ratings in Your Inbox

We add new product ratings weekly. No spam — just science-backed ratings to help you reduce your plastic exposure.