Caps 19 September 2026 4 min read

Care and Washing for Caps

By The Velocity Wear Team

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Caps survive cleaning far better than they survive drying. Cool hand washing and air drying in shape will keep a crown and its decoration looking right for years. Hot water and a tumble dryer shrink cotton twill, soften stiffened fronts and lift printed transfers. The care label has to reflect that, and on a bulk order it is your responsibility to get it right.

Can you machine wash a cap?

Sometimes, and with conditions. An unstructured cotton dad cap with a stitched logo will generally take a cool gentle cycle without harm. A structured cap with a stiffened front is a different proposition, because the interlining can warp and the crown never quite recovers the shape it had.

The safer routine for any cap is a bowl of cool water, a mild detergent and a soft brush on the sweatband, which is where almost all the dirt actually lives. Rinse, press the water out with a towel rather than wringing it, and dry the cap over something the shape of a head. That takes minutes and adds years.

What does a tumble dryer do to a structured crown?

Heat is the enemy of every component at once. Cotton twill shrinks, so the crown tightens and the peak curls. The interlining in a stiffened front can buckle and never flatten again. Printed transfers soften and lift at the edges. Plastic snapback closures distort. There is no benefit that justifies any of it.

Embroidery is the most resilient decoration under heat, which is part of why it dominates headwear. Thread is stitched through the cloth rather than bonded to it, so it tolerates handling that would destroy a print. Even so, the fabric underneath it still shrinks, and shrinking fabric pulls a stitched logo out of shape.

Clean structured cap with an intact crown and flat peak
Air drying over a head-shaped form is what keeps a crown looking like this.

What has to be on the care label?

Fibre composition and care instructions, expressed in the standard symbols, and the information required in the markets you sell into. This is a legal requirement on garments sold in the UK, the USA and Europe rather than a nicety, and on a private label run it is your label carrying it rather than a supplier brand. The compliance basics are set out in care labels and clothing compliance.

On a cap the label usually sits inside the sweatband, which is the only practical place for it. Decide at quotation stage whether it is a sewn-in woven label, a printed one or part of a private label package, because it is a build decision rather than something added at the end. The wholesale caps page covers the finishing options available on each build.

How do you deal with sweat, salt and sun?

Sweat leaves salt, and salt leaves the pale tidemark you see on a well-used cap. Cleaning it early is easy; cleaning it after a summer is not. For caps that are worn hard, specify a fabric that copes: polyester dries faster and releases salt more readily than cotton does.

Sun fades every fabric, but not equally, and a cap spends more time in direct light than any other garment you own. If the caps live outdoors, the fabric choice matters as much as the care routine, and that comparison is in cotton vs poly blend on caps. What to look for when a cap arrives, before it is ever worn, is in quality checks on bulk caps, and unfamiliar care terminology is defined in the glossary.

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FAQ

Quick Answers

Common questions about caps — answered.

No. Dishwashers run hot and use harsh detergent, both of which attack the interlining, the closure and any printed decoration. The result is a cap that comes out clean and comes out misshapen at the same time.

In their own shape and out of direct heat. A head-shaped form, a rolled towel or anything roughly the size of a skull keeps the crown where it should be while the fabric dries slowly. Radiators and dryers both cause shrinkage.

Cool washing will not. Thread is stitched through the fabric and tolerates water well. What damages a stitched logo is the fabric around it shrinking in heat, which pulls the design out of shape permanently.

The requirements are not identical across those markets, so a garment sold in all three needs labelling that satisfies each. Confirm which markets your order is going to before the labels are produced rather than afterwards.

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