Women's sun protective wide leg pants - Petra - Coolibar

Sun protection: UPF 50+ guaranteed, highest rate

We offer Europe-wide shipping and free shipping options, more details below.
€93,40 €109,90

For size selection, use the size in numbers. For more precision, take the size corresponding to your waist/hip size.

Size guide

Women's UV protection pants - Petra - Coolibar

Coolibar is an American brand that sizes up. If you're between sizes, we strongly advise you to take the smaller size.

Size US Correspondence FR Waist circumference (cm) Hip circumference (cm)
XXS 34 62 - 68 90 - 98
XS 36 - 38 68 - 70 98 - 102
S 38 - 40 70 - 74 102 - 106
M 40 - 42 74 - 84 106 - 110
L 44 - 46 84 - 92 110 - 118
XL 48 - 50 92 - 102 118 - 128
XXL 52 - 54 102 - 112 128 - 136

To measure your hips, place the tape measure around the widest part of your hips.

Free delivery and returns from 69€ in the Netherlands.

You have a question? Check out our FAQs or contact us by email or live-chat.


Step into the most wonderfully comfortable and luxurious silky sun pants you'll ever find. The lightweight Petra Wide Leg Pants sits just below the waist with floor-grazing hems to create leg-lengthening lines and effortless style which works perfectly for long travel days, comfy yoga or lounging. The convertible sun pants feature hidden side seam pockets with a side seam vents for breathability and a mid-calf tie for a harem pant look when you want to up your style. Easy to care for machine wash fabric with UPF 50+ sun protection you can depend on.

  • UPF 50+
  • Straight leg with wide leg opening
  • Side seam vent to mid-calf ability to tie
  • Side seam pockets
  • Self drawcord with hardware ends
  • Aire™ fabric: Luxurious, silky fabric with beautiful drape, feather-light and breathable with built-in stretch.
What does UPF 50+ mean?

This product is UPF 50+ certified.

UPF stands for Ultraviolet Protection Factor. It is an index measuring the ability of a fabric or material to filter out ultraviolet rays. The UPF 50+ index is the highest UV protection certification in Europe, according to European standard EN 13758-1. An UV protective garment with UPF 50+ certification blocks over 98% of UV rays, protecting your skin from possible burns and lesions.

By way of comparison, a cotton summer t-shirt often has a protection factor of around UPF 5. This means that 20% of UV rays pass through the fabric, which is a lot for someone who has to stay out of the sun or is exposed to it for long periods of time.

At KER SUN, your safety is our priority. That is why we use our own laboratory to test the UV clothing and accessories we offer on our online shop to make sure they comply with UPF 50+ certification.

Payment methods

  • Credit cards (Visa, Mastercard, Apple Pay)
  • Paypal
  • Bank Wire


The stated delivery times are calculated in working days from Monday to Friday. All products are dispatched from France.


 Standard Delivery (Home Delivery) 2 - 8 Working days Free from 69€ (or 4,90€)
Express Delivery (Home Delivery) 2 - 4 Working days 8,50€



Would you like to make a return? Find out more about the procedure here.

Returns for refund :  

  • Returns for refund are possible for 14 days from the date of receipt of the parcel. We will issue a full refund for the returned product(s)*.
  • We offer a return transport label for returns from mainland France, Belgium, Germany, Luxembourg, the Netherlands, Spain and Italy.
  • For returns from Sweden and Denmark, we offer the shipping label for 5€.
  • For other countries, the return is at the customer's expense.

*If shipping costs have been paid at the time of ordering, they will not be refunded.

Exchanges : 

  • To make an exchange, simply return the item and order the new one. Once the product has been returned to our premises, you will be refunded.

Customer Reviews

Based on 9 reviews
Pantalon PETRA

Très agréable, très léger super à porter quand il fait très chaud. Taille nickel

Umbreit, A.
Leichte schicke Sommerhose

Die Marke Coolibar ist klasse, hier findet man richtig schicke Sonnenschutzkleidung. Toller leichter Stoff für heiße Tage, schönes Design und gute Passform. Bei Ker Sun gibt es eine gute Auswahl und Beratung noch dazu.

Delphine T.

Pantalon Anti-UV à jambes larges femme - Petra - Coolibar

Meike P.

Trageangenehm , leider hatten wir nicht so viel Sonne um ein Ergebnis abzugeben

Simone Z.
Sehr schöne und luftige Hose

Sehr bequeme und moderne Hose

About Ker Sun

Ker Sun is above all a personal story. About ten years ago, Claudia, our co-founder, was diagnosed with Lupus, an autoimmune disease that forces her to be extremely careful with her sun protection. That day, she felt like she was losing some of her freedom. Like many, she no longer felt safe going outside.

In 2019, to make wearable sun protection accessible, we launched Ker Sun. Ker Sun's mission is to protect every person from sun damage. We want to give back to those with the most sensitive skin, the freedom to enjoy outdoor activities safely. We also actively participate in the prevention of UV-related diseases.

Today Ker Sun is the first French online store specialized in sun protective clothing and accessories. We distribute different brands and quality products to guarantee you an optimal sun protection.

At Ker Sun, your safety is our priority! All selected sun protective clothing is UPF50+ certified regardless of the color of the fabric. Take clothes that you will enjoy wearing, we take care of your skin.