Roca Arenisca men's climbing and trekking trousers

Roca Arenisca men's climbing and trekking trousers

84,49 €

Roca is a trouser designed for the practice of climbing and bouldering as well as hiking, but for its casual look and comfort, it is also a pair of pants that you can use all year round to travel or for any other daily use such as going out to buy or go for a drink with friends.

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Recommended for:

Recommended for Climbing Recommended for Boulder Recommended for Trekking Recommended for travel
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If you have any problem or doubt during the purchase process, you can contact us by phone +34 964 160 836

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Technical, comfortable and versatile pant. Maximum range of movements for climbing and hiking, with a very attractive look that makes it ideal for daily use.

• Hyper-elastic high-resistance cotton / Lycra® fabric.

• Slim fit.

• Reinforced knees.

• Zipped small pocket.

• Climbing toothbrush holder for right and left-handed.

• Adjustable hems.

• Aged wash.



Jeanstrack's  Roca model has been produced with hyper-elastic fabric made of combed cotton and Lycra®. The high quality combed cotton, in addition to providing a very soft touch, provides greater strength and durability due to the length of its fibers. On the other hand, the use of Lycra® as elastic fiber, guarantees both a high elasticity and recovery. Thanks to the dyeing with special pigments and the washing, an aged and worn effect is achieved in the seams that give it a cool and characteristic look, just like any casual pants you wear every day.

Adjustable hems by elastic cord. Slim fit. Security coin pocket with zipper for small items. Reinforced knees with double fabric layer. Two wide front pockets and two large rear pockets. Climbing brush holder for right-handed and left-handed. Straps for belt use.

The design and manufacture of this garment have been made in Spain (EU) respecting all regulations respecting the environment and social rights. Being a product of proximity, with your purchase, you contribute to the benefit of your community.


• This garment is treated with special pigments that tend to disappear with the use and washing.

• Always wash the garment inside out to preserve the worn effect of the garment for as long as possible.

• Avoid directly ironing the thermo-adhesive details (transfers) with the logo and the brand name.

Lavado max. 40ºNo usar lejiaPlancha max. 150ºNo usar secadoraLimpieza en seco


97% combed cotton

3% Lycra®

Combed Cotton

Cotton is a plant and a natural fibre for manufacturing fabrics. Cotton fabric is made up of threads that are in turn made up of cotton fibres that have been separated from the vegetable remains of the plant that aren't used, such as stems, shells, seeds, etc. Depending on the quality of the cotton, these fibres may have different lengths and this length allows the cotton fibre to be mainly prepared in two ways: carded or combed. In order to prepare the fibres using the comb process, the cotton fibre must have a minimum length. Thus, short-length cotton fibres can only be prepared prior to spinning by 'carding', whereas long-length cotton fibres (of higher quality) can be prepared using the 'comb' process.

Combed cotton yarns are of a higher quality than carded yarns because they provide a higher resistance and better handfeeling, and this is reflected firstly in the fabrics, and then in the final garments, providing them greater durability and a high quality end finish.

Combed Cotton


LYCRALYCRA® is a synthetic elastane fibre that can stretch up to six times its length and return to its original state, over and over again.
It was invented by Joseph Shivers, a chemist who worked at North American company DuPont in 1959 and patented it that same year, giving it the trade name LYCRA®. When introduced for the first time, elastane revolutionised many areas of the textile industry.
Elastane has been commercialised in the textile sector since its invention, under the trade names NUMA®, UNEI®, DORLASTAN® and LYCRA®, among others. The LYCRA fibre is now the property of the company Invista. It isn't a fabric, but rather one of the fibres that comprise a fabric. Its properties are to provide elasticity and a higher quality than other elastanes. Nowadays it is mostly used in the sports industry, thanks to its flexibility and lightness.
This material works as a continuous filament as it can be either a monofilament or multi-filament.
It is used to form fabrics, but never alone as it is combined with other natural, artificial or synthetic fabrics that provide a more pleasant touch and volume to the fabric.

Main characteristics of LYCRA®

  • It can be stretched up to 500% without breaking.
  • It can be stretched many times and will always return to its original shape.
  • It dries quickly.
  • Sweat resistant (ideal for sportswear).

More durable fabric.

Data sheet
Garment typeTrousers
Composition97% Combed Cotton 3% Lycra®
Adjustable HemsYes
Care Instructions

Advice on the garment:

  • This garment treated with pigment dye (jeans type) that become wear away with the use and washing.
  • Always wash the garment inside out to preserve the worn effect of the garment for as long as possible.
  • Avoid directly ironing the thermo-adhesive sconces (transfers) with the logo and the brand name.
  • We recommend that you wash separately.

Washing symbols:

wash max. 30ºdo not use bleachdo not use dryerdry cleaningiron max. 110º 

Shipping & Returns

Shipping and returns policy

  • Right of return of 14 days
  • Customer service +34 964 160 836
  • Shipments:
    • Normal shipping: delivery in 2-3 business days
    • Express shipping: delivery in 1-2 business days

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