Sun cap

A peak shades a face, not a neck

A sun cap is built around one idea: put a lightweight, breathable peak between the sun and the eyes without adding heat to the head. That is why the pieces here are cut in thin woven fabrics and pale colours, with running shapes, soft unstructured crowns and versions carrying a stated UPF figure on the product page. It is also why a cap is only ever half of a sun strategy.

What does a cap actually cover?

Eyes, forehead and the bridge of the nose, plus whatever the peak throws a shadow over when the sun is high. Ears, cheekbones and the back of the neck stay in the open, and those are the places that catch the sun on a long day facing away from it. A brim that runs the whole way round, such as a boonie hat, closes that gap. The deeper crowned bush hat shades the ears and the nape in the same way. A cap worn with a hooded sun hoodie does the same job from below.

Which fabric and colour keep a head cooler?

Colour and weave pull in different directions. A pale crown reflects more of what lands on it and stays cooler to the touch, while a dense weave blocks more of the light that reaches the scalp. A loose, thin weave held against a window shows daylight through it, and what passes through the fabric reaches the skin. The compromise most designs make is a closely woven pale crown with mesh or eyelets set where heat collects, so air moves without opening the fabric across the top of the head.

What should be checked on the peak and the sweatband?

• Peak length: a long peak shades more but catches wind and blocks the view of the ground underfoot on steep steps.
• Weight and drape: a soft, light cap can be folded into a pocket, while a stiffened one has to be carried in the hand.
• Sweatband: a wicking band moves sweat sideways instead of letting it run into the eyes.
• Adjustment: a strap, buckle or elasticated back deals with a hood pulled over the top or hair tied up underneath.
• Neck cover: some cuts add a drop flap at the back, which is the single change that turns a cap into a full-day option.

Which cap suits running and which suits a long day out?

Running favours the least fabric that still shades: an unstructured crown, a short soft peak, mesh side panels and a weight that disappears once moving. Walking all day favours a longer peak, a chin cord for exposed ground and a crown deep enough not to lift in gusts. Where the day is long and the ground open, the wider brims in the hiking hat range remain the more comfortable answer.

How is a sun cap washed?

Salt and sweat stiffen a sweatband and leave white tide marks on pale fabric, so rinse the band under cold water after hot days rather than waiting for a wash. Cool water, mild detergent, no tumble drying, and reshaping the crown while it is damp will keep a light cap looking like something worn on purpose.