What do i wear for a hike?

Protection is crucial not only against the sun but also against wind, water, and cold.
Your trip plan and your local climate is crucial for determining what items to bring along.
If you have no plan, a good starting point would be to pack sunscreen, a wide brimmed hat for the face and the neck (alternative is a safari cap), sunglasses, a rain jacket, and insulation as a summer alternative.

Avoid overpacking and make informed decisions based on your local climate.
Use sunscreen, wind protection (+UV protection) sunglasses, and sun-protective (UPF) clothing in every season, regardless of temperature or cloud cover.
Use a scarf/headscarf to shield yourself from sand and dust when it's windy.
Alternative is a ecostretch scarf

Always dress in layers and avoid cotton, as it drains body heat in cold weather.
Wear windproof and waterproof clothes. In the mountains the weather quickly can turn cold. So bring some extra clothing.
Use hand warmers to stay warm while hiking or sleeping at night during winter.
In bad or cold weather, wear moisture-wicking clothes and carry a warm hat.

Choose synthetic materials or cotton/polyester blends that are made from breathable, moisture-wicking fabric. These materials help draw sweat and moisture away from your body, keeping you dry and warm.
Merino wool is an excellent choice to avoid blisters, to avoid getting sweaty, smelly and to staying warm.
If you're unable to dry yourself, sweating could lead to freezing. Removing layers can help prevent this.
Pack additional pairs of (Merino wool) socks.

Opt for quick-drying pants. Bring packable rain pants in case of substantial rain forecasts. Proper gaiters will block water from entering your shoes.
Choose lightweight, breathable, comfortable hiking underwear that wicks moisture away and prevents chafing.

Softshell/shell jacket
A light jacket is ideal for a chilly hike, or consider a thermal base layer
For a robust solution, bring a base layer, wind layer (fleece and insulation layer), and a shell layer. A good alternative for insulation is a puffy vest.
Opt for synthetic materials, cotton/polyester blends, or Merino wool. These breathable, moisture-wicking fabrics pull sweat and moisture away from your body, keeping you dry and warm.
If you run cold pack warmer layers, not more

Are there rattlesnakes in the area? Wasps? Bees? Ticks? In such a case wear comfortable, unrestrictive, long pants and breathable long sleeves and socks and closed toe shoes with no holes in them to protect your skin from bites
(Merino) Wool socks keep feet warm even when they get wet with sweat or rain and they provide good cushioning against sore feet
Consider using a (thinner, more stretchable and more comfortable) PU rain jacket.
Consider using a PU rain jacket such as the Patagonia Torrentshell, Patagonia Houdini, North Face Dryzzle, Outdoor Research Interstellar, or Foray.
Use a lightweight winter jacket for temperatures close to freezing. Long underwear provides extra insulation for your legs. A warm winter hat does the same for your head, and so do waterproof gloves.
Materials like fleece work well as middle layers, Fleece compresses well, is lightweight, breathable and offers good insulation.
Wear long pants, not necessarily denim
underwear, sweater, thermals
A poncho is a good option for hikers