Best hats for protecting your face and neck at high altitude

Sun exposure becomes more intense as you gain elevation, where thinner atmosphere allows more ultraviolet radiation to reach exposed skin. A suitable hat can shade the face, ears and neck while making a long climb, scenic walk or alpine camping trip considerably more comfortable.

For Australian hikers, this matters on bright trails around Mount Kosciuszko, the Victorian High Country and Tasmania’s Central Plateau, as well as during overseas mountain travel. A cap that feels adequate on a city walk in Sydney or Melbourne may leave the sides of your face and the back of your neck exposed above the tree line.

Why altitude increases sun exposure

Ultraviolet radiation generally rises with altitude because there is less atmosphere to absorb and scatter it. A commonly used estimate is an increase of around 10 to 12 per cent for every 1,000 metres, although cloud, latitude, season, snow and local weather can change the actual level. Snow and pale rock can also reflect UV towards the underside of your face.

Cool air can make the danger easy to underestimate. You may feel a crisp breeze on Mount Kosciuszko or a cold wind along a Tasmanian ridge while ultraviolet radiation continues to affect uncovered skin. A hat should therefore be part of your sun protection system, alongside sunscreen, sunglasses, protective clothing and regular reapplication.

The Cancer Council’s Australian sun protection advice places strong emphasis on broad-brimmed or legionnaire-style hats. That guidance is particularly useful at altitude, where long periods outdoors, strong reflected light and limited shade combine to increase exposure.

Wide-brimmed hats offer the broadest shade

A wide-brimmed hiking hat is usually the strongest choice for protecting your face, ears and neck. A brim measuring roughly 7.5 centimetres or more can cast useful shade across the cheeks and nose, while a firm edge is less likely to collapse against your face in wind. Look for a brim that remains stable when you turn your head or adjust a pack.

Some outdoor hats use a slightly sloping brim to shed rain, while others have a flatter design for broader shade. A chin cord helps keep the hat in place on exposed ridges, but it should be adjustable and comfortable rather than tight. A toggle can make it easier to secure the hat when gusts arrive.

Wide brims can interfere with pack straps, binoculars or a camera, so try the hat with your usual equipment. If the rear brim catches on a backpack, a practical compromise may be a narrower technical brim combined with a neck flap or a separate sun cape.

Legionnaire styles protect the neck

Legionnaire hats combine a front peak with fabric panels covering the sides and rear of the head. They are especially useful for children, fair-skinned hikers and anyone who burns easily around the ears or hairline. The neck flap can provide more consistent coverage than a brim when the sun is low or coming from behind.

A removable flap offers flexibility for changing conditions. You can take it off for a shaded forest walk and attach it before reaching an exposed plateau. Some designs use mesh panels around the ears and crown to improve airflow, though the mesh itself may provide less UV protection than densely woven fabric.

A standard baseball cap protects the forehead and eyes but leaves the ears and neck vulnerable. It can still work for short walks if paired with sunscreen and a collared shirt, but it is a limited option for full-day alpine routes. For children travelling through Australia’s intense summer sun, a legionnaire design is generally more protective and easier to rely on.

Fit and fabric determine real-world protection

A hat only protects the intended areas when it stays in position. Choose a size that sits securely without pressure around the temples, and check that the crown does not slide backwards when you look up. An adjustable rear band is useful when wearing a braid, thick hair or a thin beanie underneath.

Dense, lightweight fabrics such as polyester or nylon can provide durable shade without becoming excessively heavy. A high ultraviolet protection factor, or UPF, rating gives a clearer indication of fabric performance than colour alone. Dark fabrics may absorb more heat, while very pale fabrics can show dirt quickly, so breathability and weave are more important than appearance by itself.

Sweat-wicking inner bands improve comfort on steep ascents, and quick-drying fabric is valuable when a hat becomes damp from perspiration or a sudden shower. Natural fibres can feel pleasant, but technical blends often dry faster and hold their shape better after repeated packing.

Features worth prioritising

Before choosing a hat for an alpine trip, focus on coverage, stability and ventilation rather than decoration. Snowdon-branded outdoor hats and products from established technical labels may differ in styling, but the useful features are broadly the same.

The best design also needs to work with the rest of your clothing. A hat should leave room for sunglasses, avoid blocking peripheral vision and sit comfortably above a hood. If you wear prescription glasses, check that the brim does not press against the frames or cause them to fog during a climb.

A hat cannot replace sunscreen on exposed skin. Apply broad-spectrum sunscreen to the nose, cheeks, ears, lips and any uncovered neck, then reapply according to the product directions. The brim reduces the load on those areas, which is especially valuable when wind, sweat or altitude makes frequent applications inconvenient.

Match the hat to the activity

For technical hikes above the tree line, choose a secure wide-brimmed model with a chin cord, ventilation and enough structure to withstand wind. A removable neck flap can make the same hat suitable for changing conditions. If you are carrying a large pack, test the rear brim against the shoulder straps before departure.

For casual walks, sightseeing or family trips, comfort may matter more than extreme packability. A lightweight legionnaire hat suits children and adults who want reliable rear coverage, while a compact brimmed hat works well for day walks around alpine villages, coastal tracks or national parks. A soft, crushable model is convenient for travel but should recover its shape after being stored.

Snow travel calls for additional care. Bright surfaces can reflect UV from below, so a hat with ear and neck protection remains useful even when temperatures are low. Pair it with UV-protective sunglasses and a helmet-compatible design if the activity involves climbing, skiing or mountaineering. Never force a bulky hat beneath a helmet if it affects the helmet’s fit.

Look after your hat before the next trip

Salt, sweat and sunscreen can stiffen the headband and weaken some fabrics over time. Follow the care label, rinse the hat after dusty or sweaty outings and allow it to dry fully away from direct heat. Avoid leaving a technical hat on a car dashboard in Australian summer conditions, where heat can distort brims and damage coatings.

Inspect the stitching around the brim, chin cord and neck flap before each trip. A small tear can become a major failure when strong wind catches the fabric. Replace a hat when the brim no longer holds its shape, the fabric has visibly thinned or the fit has become unreliable.

When comparing options, take your sunglasses and the layers you normally wear. For a route in the Snowy Mountains or a long walk near Canberra, try the hat with a fleece, rain shell and backpack. The practical next step is to place your preferred hat on with those items and check that your face, ears and neck remain shaded while you look up, turn sideways and tighten the pack.