Advice & Guides What to do if your Gore-Tex product leaks
Gore-Tex not keeping out water? There's a different procedure to getting it sorted, and here's an explainer...
14 Jan 2026
Alpinestars Arenis Gore-Tex Trousers - Mid Grey / Deep Grey / Black
PFAS-Free 2L trousers with laminated Gore-Tex waterproof shell, direct thigh ventilation and jacket-to-trousers connection zip
DetailsNew
Description
Built with 2L Gore-Tex laminated construction for all-weather protection, the Arenis Gore-Tex trousers are the ideal exploration-touring trousers designed for long trips and high off-road terrain. Constructed from high-performance materials and removable CE level 2 Nucleon Flex Pro armour at the knees and Bioflex hip protection, the trousers are designed to deliver exceptional comfort, ergonomic mobility, and breathability - perfect for dual sport and adventure riding.
Product Specification
Variants
Matching Jacket
Manufacturer
Alpinestars Arenis Gore-Tex Trousers - Mid Grey / Deep Grey / Black
- PFAS-Free 2L laminated Gore-Tex shell construction
- Gore-Tex shell delivers >28,000mm waterproof protection and an MVTR >15,000 g/m²/24h allowing moisture to escape
- CE certified level 2 Nucleon Flex Pro knee armour protection with 3-level height-adjustable positioning
- Microgrid reinforcement layers at knees with strategic stretch insert for enhanced mobility
- Direct thigh ventilation openings for maximum airflow
- Pre-curved legs with stretch panels in the lumbar area and crotch for unrestricted mobility
- Waterproof cargo pockets for secure and functional storage
- Magnetic buckle, waist belt closure for a quick and secure closure
- Convenient waist connection zip for seamless fit with Alpinestars ADV jackets
- Long, lower leg zipped opening with gusset for a customisable fit
- Calf volume adjusters keep armour safety secured in position
- CE certified 'AA' class - category II EN1621-1:2012 standard
| XS | S | M | L | XL | 2XL | 3XL | 4XL | |
|---|---|---|---|---|---|---|---|---|
| UK SIZE | 28 | 30 | 32 | 34 | 36 | 38 | 40 | 42 |
| EURO SIZE | 44 | 46 | 48 | 50 | 52 | 54 | 56 | 58 |
| REGULAR LEG | 30 | 31 | 31 | 32 | 33 | 34 | 35 | 36 |
Built with 2L Gore-Tex laminated construction for all-weather protection, the Arenis Gore-Tex trousers are the ideal exploration-touring trousers designed for long trips and high off-road terrain. Constructed from high-performance materials and removable CE level 2 Nucleon Flex Pro armour at the knees and Bioflex hip protection, the trousers are designed to deliver exceptional comfort, ergonomic mobility, and breathability - perfect for dual sport and adventure riding.
Advice & inspiration
Advice & Guides 
Advice & Guides Motorcycle CE armour markings explained
If it feels like armour in your bike kit then the law demands it is actually proper, protective armour. Here's how to tell how effective your impact protection is...
3 Feb 2022
You may also like...
You won’t get it cheaper. Our Price Match Promise.
Find it cheaper at any major motorcycle accessory retailer, online or in-store and we‘ll match it.
How to request a price match.