Cotton On: June 2026

Based on our analysis of 762 Cotton On products, the average garment is 57.1% natural fibre. The most common single fibre is Cotton (in 55.6% of products). The remaining material is typically synthetic — polyester, polyamide, or acrylic.

Sometimes — cotton appears in 55.6% of the 762 Cotton On products we analyzed, but it's usually blended with synthetics. Only 33.3% of items are nearly all-natural (95%+ natural fibre), so check the composition before assuming a piece is pure cotton.

Effectively no. We didn't find any Cotton On products that are 100% cotton (or near-pure, 95%+) in our database. Cotton at Cotton On is almost always blended with elastane, polyester, or other fibres.

22.6% of Cotton On products are polyester-heavy, meaning polyester makes up 50% or more of the garment. This is below average for fast fashion retailers.

22.6% of Cotton On products are polyester-heavy (50%+ polyester). Average natural fibre content is 57.1%, so the rest of the catalog is mixed.

33.3% of Cotton On products are nearly all-natural (95%+ natural fibre). A decent portion of their range avoids synthetic fibres entirely.

Fabric composition is one factor in sustainability. With an average of 57.1% natural fibre, Cotton On is about average on this measure. Natural fibres generally biodegrade and shed fewer microplastics than synthetics.