The highly water-repellent, super durable, jeans-inspired Acosta Trousers transition seamlessly from bike to crag to urban wear.

Made from stretchy, fast-drying Windproof Denim by Nikwax® with renewable water-repellency. Ventilation zips and subtle reflective details add multifunctionality.


RRP £95.00





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Average weight 227g

Product Ethics

  • PFC*-free water repellent finish
    (*per and polyfluorinated compounds)
  • Fully recyclable through Páramo.

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The Acosta Trousers offer year round functionality across mountain and urban environments.

If you regularly switch between adventurous weekend trips and daily city cycle commutes, you appreciate legwear that can do it all.

The Acosta trousers provide the perfect fusion of robust mountain performance and urban style. 100% polyester Nikwax® Windproof Denim gives a 'jeans look' but significantly improves functionality: water-repellent, fast-drying, stretchy and UV protective. Discreet ventilation and subtle reflective detailing complete this multi-activity legwear.

The Acosta Trousers are extremely robust and feature hidden thigh vents and subtle reflective details.

  • Robust design with reinforced stitching and rivets at high stress points.
  • Mesh-lined thigh ventilation zips for temperature control.
  • Subtle reflective detailing on front and rear pockets and on internal side seam (visible when trouser hem is rolled up).

Nikwax® Windproof Denim is a water-repellent stretchy fabric that provides excellent moisture vapour transfer,

Nikwax Windproof Denim Fabric allowing your perspiration to escape. Comfortable when worn next to skin, this denim-inspired Windproof cuts the wind, deflects the rain and blocks harmful UV rays to protect you in all environments.

The water-repellency is renewable with Nikwax aftercare and the fabric is highly durable to survive all activities in all terrains.

For more detail about Nikwax Windproof Denim, click here.

Choose Acosta Trousers for the style and fit of your favourite denim jeans with indispensable outdoor functionality.

The Acosta Trousers use tough, water-repellent and fast-drying Nikwax® Windproof Denim fabric.

Their stretchy, articulated fit offers freedom of movement for a huge range of activities. The classic 4-pocket jeans styling features subtle reflective detailing on the pockets and inner leg seam, visible when the hem is rolled up.

Discreet mesh-lined thigh zips offer effective ventilation when required. The dense weave provides SPF 50+ UV protection.

In summary, the Acosta Trousers are the perfect combination of functionality and style for multi-activity wear in urban or natural environments.

How will my Windproof Denim outperform standard denim?

Windproof Denim offers greater versatility, performance and practicality. Firstly, the fabric is water-repellent and fast-drying, unlike standard denim which holds on to water. Secondly, it is not only windproof but UV-proof and able to supply protection against biting insects because of the dense weave. Therefore, it can be used without discomfort in a very wide range of conditions.

Windproof Denim is also stretchy and combined with the clever articulated design can provide excellent ease of movement.

The fabric is extremely tough and durable, so suitable to use in many different environments without damage.

  1. Mesh-lined thigh ventilation zips for good temperature control.
  2. Reinforced stitching and rivets at high stress points for added strength and durability.
  3. Water-repellency renewable with Nikwax® TX.Direct.
  4. Clean, slim cut using stretch and articulation for free movement when climbing or cycling.
  5. Subtle reflective detailing on front and rear pockets and on internal side seam (visible when trouser hem is rolled up).
  6. Classic 4-pocket 'jeans' design with zip and button fly.
  7. SPF 50+ UV protection.
  8. Belt loops.

What users say...

Gear of the Year 2018

“Some technical trousers – with key things for travellers such as articulated knees for comfort and robust fabric for durability – look way too sporty and, though fine on the trails, can look a bit OTT in a restaurant. Enter the winner of this year’s Best Travel Trousers: Páramo’s Acostas. Using a special windproof denim that is proofed with Nikwax – meaning they’re shower-resistant – they look good no matter where you find yourself. Added extras including discreet vents (for breathability), stretchy fit (for comfort) and UV protection make this a fantastic combination and still incredibly light.”

Judges' comments: “You’d never know these were technical trousers, which makes them a superb choice for travellers.”

Wanderlust Gear of the Year 2018

“I would never have considered buying them as jeans in the outdoors isn’t something I’d recommend – however I found these comfortable and practical. They were a nice cut and a good fit – and worked well in the Alps as an approach and climbing pant (and general hanging out pant). They were waterproof in the showers, dried exceptionally quickly, and were light enough to cope with the 30 degree heat. I would definitely recommend them.”

Sheryl Confue

“I took off for Peru mid-April this year armed with some shiny new bits of kit, eager to put them through their paces on my two back to back Inca Trails. We certainly did have four seasons in a day, every day! The sun shone bright and hot, then it clouded over and rain and wind came….my staples were the Tempro and Acosta, which, although worn five days in a row on both trips, still looked (and smelt!) as fresh on the last day heading into Machu Picchu as they did on the acclimatization day in Cusco at the start of each trip. I knew the kit would stand up to the rigours of long days on the hill with great venting and temperature control. The Acosta Trousers were like wearing your favourite comfy pair of jeans. ”

Jo Bradshaw

In what kind of weather conditions can I use the Acosta Trousers?

The Acosta Trousers are an ideal three-season solution, thanks to the wind-resistant fabric with renewable water-repellency, UV protection and ventilation options.

The Acosta Trousers will repel a light shower, but if heavy rain is forecast we recommend Páramo trousers using Nikwax® Analogy Waterproof fabric for full weather protection. In warm or humid weather, choose our Atca Trousers for a fast-drying, cooling effect.

Which garments should I use with my Nikwax® Windproof Denim to get optimum performance?

We recommend using our Parameta T+ underwear underneath the Windproof Denim legwear for maximum comfort.

These trousers will combine well with any of our baselayer, midlayer, windproof or waterproof tops.

All Páramo garments are covered by our Recycling Scheme, which prevents them from ending up in landfill.

For every item of Páramo clothing you recycle with us, you will receive a voucher of (up to) £50, to use against a future purchase. Click here to find out more about recycling your Páramo...

What if I damage my Páramo clothing?

Simple repairs can often be done with a needle and thread without compromising the performance of your garment. If it is seriously damaged, you can send it back to Páramo and request a quote for having it repaired. Our Customer Service team can advise you.

What if I damage my Páramo clothing?

Simple repairs can often be done with a needle and thread without compromising the performance of your garment. If it is seriously damaged, you can send it back to Páramo and request a quote for having it repaired. Our Customer Service team can advise you.

We guarantee everything we make.

Páramo waterproof garments, maintained correctly with Nikwax, will outperform membrane and coating-based waterproof systems. The durable fabrics and high quality components used in our garments contribute to their longevity.

Under the terms of our Lifetime Guarantee, any manufacturing defect will be rectified, free of charge, for the life of the garment. Any damage by accident or normal ‘wear and tear’ can be repaired by our workshop at a reasonable cost.

To register a guarantee with us please click here.

Size To fit waist up to To fit hips up to To fit leg length of
  cm in cm in cm in
26R 66 26 91 36 74 29
28R 71 28 96 38 74 29
28L 71 28 96 38 79 31
30S 76 30 101 40 69 27
30R 76 30 101 40 74 29
30L 76 30 101 40 79 31
32R 81 32 106 42 74 29
32L 81 32 106 42 79 31
34R 86 34 111 44 74 29
34L 86 34 111 44 79 31
36R 91 36 116 46 74 29
36L 91 36 116 46 79 31
38R 96 38 121 48 74 29

Páramo Ladies' EASY FIT Size Guide Garments are specified using metric measurements, therefore the metric measurements in this chart are the most accurate. Imperial equivalents are rounded to the nearest half number.


Measurements relate to the body rather than garment measurements, for example a leg length measurement given here is for a person's leg length, not the actual leg length of the garment to reflect the fact that our garments are designed specifically for a number of different activities.

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