Hybrid structure
Combination of a durable and protective fabric (147g/m2; 70 Denier) on areas to be protected from friction (knees, lower leg, buttocks) and a light and breathable fabric (109 g/m2; 20 denier) elsewhere.
Side zips
Use of a waterproof zip with a double slider to both regulate body temperature and easily put the over-trousers on without the need to remove boots.
Press-studs at the waist and ankles.
Protection
Bottom of trouser leg has an elastic strip with silicone inside to improve grip on the boot.
Hook at bottom of trouser leg to attach to the boot laces to prevent the over-trousers from riding up while walking.
Water resistance of the fabric
We measure a fabric's resistance to water pressure, expressed in terms of the height of a water column in mm (based on the ISO 811 standard). The higher the pressure, the more waterproof the fabric.
Here are the waterproof values of the Trek 500 over-trousers:
25,000 mm (or 25,000 Schmerbers) before washing for the lightest fabric (11,000 mm after 5 washes)
20,000 mm (or 20,000 Schmerbers) before washing for the strongest fabric (17,000 mm after 5 washes)
Water resistance of the over-trousers
The water resistance of the over-trousers was tested under rainfall of 450 litres of water/m²/hour for 4 hours. This test reproduces the conditions of a thunderstorm in the mountains.
Sizes
Slightly fitted cut to reduce excess material and weight.
Choose your usual size or a size above if you are wearing them over very thick trousers.
Inside leg length: 86.6 cm in size 44 (L)
Width of trouser hem: 20.1 cm in size 44 (L)
Fabric breathability
To find out if a fabric is breathable, we test its evaporative resistance RET (ISO 11092 standard) The lower the fabric's resistance, the more water vapour evaporates, and the higher the fabric's breathability.It is considered that if:RET < 9 = very breathable fabric
9 < RET < 12 = breathable fabric.Here are the breathability values for the Trek 500 over-trousers:>Most durable fabric: RET < 12 (or 3,621 g/m²/24h, standard JIS1099A)
>Lightest fabric:RET < 8 (or 2972 g/sqm/24h, standard JIS1099A)
How to restore the water-repellent properties?
The water repellent property of a fabric is its capacity to make water run off its surface without absorbing it.As a result, your over-trousers do not soak up water and stay light, breathable.The fabric is made water-repellent by treating its outer surface, however this property may deteriorate with use.To reactivate it, follow the guide:https://www.quechua.co.uk/advice/how-do-you-restore-water-repellent-properties-your-jacket-a_86426?_ga=2.225541081.2119208219.1522845447-1496252894.1522845447
Weight
UK27" / FR 36 (L30) : 0.369 kg
UK29" / FR 38 (L30) : 0.374 kg
UK31" / FR 40 (L31) : 0.389 kg
UK32" / FR 42 (L31) : 0.413 kg
UK34" / FR 44 (L31) : 0.426 kg
UK36" / FR 46 (L31) : 0.47 kg