LoveGoBuy Spreadsheet Materials: Cotton Blend vs. 100% Cotton

“Cotton blend” leaves the important number open

The phrase “cotton blend” tells you that cotton is combined with at least one other fiber, but not how much of each is present. A listing that states 80% cotton and 20% polyester conveys more than one that simply says “cotton feel.” The FTC's U.S. textile guidance uses percentage-by-weight fiber statements and gives examples such as cotton/polyester blends. That is a useful reading model even when a seller is outside the United States: percentages are more informative than a material adjective.

Do not assume a higher cotton percentage automatically makes a garment better. It may change how the fabric feels and behaves, but weight, knit construction, finishing and the purpose of the garment also matter. The composition field answers “which fibers and approximately how much,” not “will I like this hoodie?” If the seller omits the percentages, leave the fiber claim unverified.

A “100%” claim has a narrow meaning

FTC guidance says a product should not be labeled “100% Cotton” unless its textile fiber content is cotton, subject to certain trim exceptions. The key is to read exactly which part the claim describes. A cotton outer fabric does not necessarily mean a jacket's lining or filling is cotton. The FTC's detailed textile guide shows separate disclosures for shell, lining and filling when those sections contain different fibers.

For a T-shirt with a printed graphic, a label saying 100% cotton does not tell you how the print will wear. For a puffer, a “cotton shell” line says nothing about the fill unless the fill is separately specified. When a listing uses one material word for a multi-part garment, ask whether it refers to the main body, ribbing, lining, insulation or the whole item. A photograph of a tag can help you read a claim, but it cannot independently test the fabric.

Read the garment by sections

The FTC's textile rules discuss sectional disclosures because one garment can combine different materials. Its examples include a body and sleeves with different fiber mixes, as well as separate outer, lining and filling information. This is especially relevant when comparing hoodies with contrast panels, sets with two pieces, or jackets with a shell and insulation. An all-purpose “material: cotton” line may hide those distinctions.

Make a small component list before comparing two finds: main fabric, lining, fill, stretch panels and decorative parts if they affect your choice. Ask for a breakdown only where it matters. A winter jacket buyer may care most about shell and fill; a graphic tee buyer may care about body fabric and the way the print is applied. This prevents a precise-sounding percentage from one section being mistaken for the composition of the entire product.

Care instructions answer a different question

A care label describes regular cleaning, not a material grade. FTC care-label guidance explains that instructions must address washing or dry cleaning and, where relevant, drying, ironing, bleach and warnings. A “dry clean only” statement is a care restriction; it is not evidence that the fabric is luxurious. Likewise, “machine wash” does not promise resistance to pilling or shrinkage beyond what the instruction actually covers.

When comparing listings, read the care information alongside the composition. A garment requiring a cleaning method you cannot use may be a poor choice regardless of its fiber mix. Decorative prints, coatings, linings and trims can create care limits even when the main fabric seems ordinary. If a seller supplies only a generic care phrase, ask whether it applies to the full finished garment and whether warnings are missing.

A concrete comparison: two “cotton” hoodies

Imagine Hoodie A lists a 100% cotton main body but says nothing about ribbing or print care. Hoodie B lists 70% cotton and 30% polyester for the main fabric and includes separate care instructions. Neither description is automatically superior. A gives a clear body composition but leaves other components open; B gives a blend and more cleaning information. Without fabric weight, dimensions and construction details, neither listing can establish which will feel heavier or last longer.

A better comparison asks each seller the same questions: What is the full fiber breakdown for the body and lining? Is fabric weight stated, and in what units? What are the finished measurements for the size I want? What care instructions apply to the printed or decorated garment? These questions turn a vague “cotton hoodie” search into comparable data. They also make it easier to notice when one seller's material claim changes after a variant is selected.

Use material words as prompts, not verdicts

The hoodie category and T-shirt category are starting points for finding styles. This article focuses on the narrower question of how to read fiber claims. On a live listing, distinguish a seller's description from an actual sewn label, note which component each percentage covers and keep unknowns visible. A percentage is evidence about stated composition; it is not a lab test conducted by this directory.

The references below are U.S. labeling and care sources. They explain how precise claims should be expressed and why component-level wording matters. Requirements vary by market, so do not assume those rules govern every overseas listing. The practical lesson travels well: a clear, complete breakdown is more useful to a buyer than an appealing but undefined material phrase.

The buyer account of denim and graphic tees distinguishes fabric feel, garment fit and one after-wash observation. For layered clothing, compare those separate questions in the down-jacket category, where a shell description may say little about the filling.