A cap may seem like a simple item of clothing, but the difference between a good buy and a poor one often comes down to the details. The wrong size can start to feel tight after a short time, a dark baseball cap can feel hot on a walk, and a “waterproof” cap may not offer enough protection in prolonged rain.
This buying guide helps you compare men’s caps using verifiable product specifications. That way, you can choose the right one for everyday wear, sport, travel or outdoor activities in the UK.
A stylish cap won’t necessarily fit your head properly. Some models come in a fixed size, while others have a buckle, elasticated band, drawcord or snap closure. So check the head circumference in centimetres first, then consider the colour or shape.
A product description may mention UPF 40+, UPF 50+ or even UPF 100+. These are product specifications provided by the brand or seller, not a guarantee that all your skin will be covered. According to the brands’ own product information, these ratings refer to the protective properties of the material. A UV-protective cap is still only one part of sun protection.
“Waterproof” also doesn’t automatically mean a cap is suitable for prolonged heavy rain. Check the material, seams, closure and care instructions.
A thin fabric isn’t necessarily airy. For warm weather, mesh panels, ventilation openings and a moisture-wicking sweatband are more relevant. This can make a breathable sports cap a better choice for running or golf than a closed cotton style.
Measure your head with a tape measure, around one centimetre above your eyebrows. Many styles fall within these ranges:
An adjustable cap with a buckle or drawcord gives you more flexibility. An elasticated Flexfit band can be comfortable, but check that the available size suits your head circumference. A cap that’s too tight will be less comfortable on long walks or bike rides.
Cotton feels soft and works well for everyday wear. Polyester and nylon generally dry faster and are often used for sports and outdoor caps. Linen can feel light and airy, but check the product specifications carefully: the product title and material description don’t always match.
These details are useful in warm weather:
A curved peak helps shield you from bright light and glare. For fishing, boating or walking in open areas, a cap with a neck flap can provide extra coverage around your neck and ears. A detachable flap makes the style more versatile: wear it as an outdoor cap when you need extra protection, or as a regular baseball cap when you don’t.
Check the care instructions for a waterproof cap. Some styles should only be hand-washed to help retain their shape or water-repellent properties. A lightweight style is often enough for everyday commuting; for camping or boating, an adjustable cord and wind-resistant construction are more useful.
Why it suits this profile: This black cap is designed for everyday wear, fashion and sport. The one-size design with snap closure is easy to wear with casual outfits.
The product specifications clearly state that it’s one size and has a snap closure. Check beforehand that this size suits your head circumference.
Polyester main material, snap closure and hand-wash care according to the product label.
Why it suits this profile: The closed back, six-panel construction and elasticated Flexfit band give this baseball cap a smart look for everyday wear and casual outfits.
The size chart covers 53 to 65 cm. This lets you choose your fit based on your head circumference rather than relying on the S/M label alone.
63% polyester, 34% cotton, 3% elastane; curved peak and embroidered ventilation openings.
Why it suits this profile: The wide brim, adjustable drawcord and unisex design make it suitable for walking, fishing, camping and travel.
According to the product information, the brim provides extra shade around your face, ears and neck. The manufacturer states that it has UPF50+ protection and a water-repellent design; check its limitations in heavy rain.
Wide all-round brim, moisture-wicking sweatband and convertible design that can be worn as a bucket hat or in a cowboy style.
We’ve put together a complete, up-to-date list of products that meet these strict selection criteria and the applicable European safety regulations.
Measure around your head with a flexible tape measure, just above your eyebrows and ears. Compare the result with the size chart for the specific style. A size such as M/L can vary between brands.
That depends on how often you wear it, the material, sweat, sunlight and care. A cap that should be hand-washed according to its label will generally keep its shape better if you follow those instructions. Leave it to air-dry and avoid storing it compressed for long periods.
No. According to brands’ own product information, UPF ratings refer to the protective properties of the fabric. A cap doesn’t cover all your skin or provide complete protection from the sun. So wear a cap alongside other appropriate precautions, such as seeking shade and protecting any uncovered skin.