The potential for a polo zip-up hoodie to shrink in the dryer largely depends on the fabric composition and how it was manufactured. In general, certain fabrics are more prone to shrinking than others when exposed to high heat. Common materials used in hoodies include cotton, polyester, and blends of these materials. Here's what you can expect for each:
100% Cotton: Cotton garments have a higher likelihood of shrinking in the dryer, especially if they are not pre-shrunk. The combination of heat and tumbling can cause the fibers to contract, resulting in some shrinkage. If you want to minimize shrinking, you can use a low-heat setting on your dryer or air dry the hoodie instead.
Polyester: Polyester is less likely to shrink in the dryer because the fibers are more heat-resistant. It is often blended with cotton or other materials in hoodies to improve durability and reduce shrinkage.
Cotton-Polyester Blend: Many hoodies are made from a combination of cotton and polyester. The presence of polyester in the fabric blend can help reduce the overall shrinkage compared to 100% cotton hoodies.
To preserve the size and fit of your hoodie, it's generally recommended to follow the care instructions on the garment's label. If the label advises against machine drying, it's best to air dry the hoodie to prevent any potential shrinkage. If you're unsure, and to be on the safe side, you can air dry the hoodie after washing or use the lowest heat setting on the dryer.
Keep in mind that different brands or specific hoodie models may have different fabric compositions and care instructions. Always refer to the specific care label of your polo zip-up hoodie to ensure you're treating it correctly and maintaining its original size and fit.