The Alpinestars Stella Andes V4 Drystar textile motorcycle trousers are built for road use in a wide range of weather conditions. They combine a waterproof and breathable Drystar membrane, reinforced 450D polyfabric, impact-tested armour, and practical ventilation and thermal options, giving you reliable protection, durability, and comfort throughout the year.Discover the key features of these trousers and how they work for you:Drystar Waterproof and Breathable Membrane: A fixed Drystar barrier blocks external water while allowing perspiration vapour to escape, which keeps you dry in sustained rain and prevents clamminess from sweat build-up, resulting in steady comfort and focus during long rides in poor weather.Reinforced 450D Polyfabric Main Chassis: A densely woven 450-denier polyester shell with ripstop and PU-coated reinforcements in high-abrasion zones resists tearing and surface wear, which reduces material damage during everyday use and in a slide, resulting in dependable abrasion performance over time.Detachable Thermal Liner (100 g thighs / 60 g lower legs): A quilted, weight-rated liner traps warm air at the upper leg while keeping the lower leg less bulky for boot fit, which stabilises body temperature in cold conditions without restricting movement, resulting in practical warmth that you can remove quickly when temperatures rise.Direct Thigh Ventilation with Waterproof Coil Zips: Long vent openings use water-resistant coil zippers and internal channels to route airflow across the thighs, which increases cooling when open and preserves weather sealing when closed, resulting in precise temperature control on warmer days or during stop-start traffic.Nucleon Flex Plus CE Level 1 Knee Armour with 3-Position Adjustment: A highly flexible viscoelastic protector certified to EN1621-1:2012 absorbs and disperses impact energy and sits in a three-position pocket, which lets you fine-tune armour height to your riding stance, resulting in protection that stays correctly located throughout your ride.Stretch Softshell Mobility Panels: Large elasticated softshell inserts at key articulation points allow the chassis to move with your hips and knees, which reduces pulling when you shift weight on the bike, resulting in easier mounting, dismounting, and all-day comfort.Ergonomic Female Fit with Adjustable Waist: An anatomically shaped cut pairs with twin waist adjusters for a close, secure fit over your base layers, which minimises fabric bunching and pressure points, resulting in a tidy silhouette that stays stable at speed.Jacket-to-Trouser Connection Zip: A full-circumference zip links to compatible Alpinestars jackets, which closes the gap between layers and limits draughts and water ingress at the waist, resulting in a more stable two-piece setup for wet and windy conditions.Water-Resistant Cargo Pockets: Twin flap-covered, water-resistant pockets provide quick access to small items, which helps protect contents from showers, resulting in practical storage for keys, cards, or a small toolkit.Reflective Inserts: Strategically placed reflective detailing increases conspicuity under vehicle headlights, which supports your visibility in low light, resulting in added presence at dusk and in rain.CE Certification to EN17092-3:2020 (A Class): The trousers are approved as protective motorcycle clothing under EN17092-3:2020 to A Class, which verifies minimum performance for abrasion, seam strength, and impact coverage, resulting in documented protection for everyday road use.You maintain protection, dryness, and temperature control on wet commutes, breezy motorway runs, and mixed-weather trips because you can open vents, add or remove the liner, and keep the waist secure to suit the conditions. You also keep small essentials close and sheltered so fuel receipts, cards, or a disc lock key stay accessible without rummaging in a rucksack. As part of your riding kit, these trousers are a smart choice for an all-weather setup that prioritises practical protection, adaptable comfort, and an organised on-bike routine.