Lightweight adventure motorcycle trousers for warm climates
The Alpinestars Stella Explore AST are women's motorcycle trousers for female adventure and touring riders who prioritise warmth and ventilation over rain protection. The full stretch construction with ripstop reinforcements combines freedom of movement with CE AA certification. Nucleon Flex Plus knee protectors and Bio-Flex hip protectors are included as standard.
Who are these motorcycle trousers for?
The Stella Explore AST target female adventure and touring motorcycle riders in warm weather. Summer rides through the countryside, off-road sections where ventilation matters, or multi-day trips where you want to remove your motorcycle trousers quickly in the evening. Alpinestars designed these motorcycle trousers specifically for warm climates and situations where a membrane would hinder more than help.
Stretch construction with ripstop reinforcements
The main construction consists of lightweight polyamide stretch that runs across the entire motorcycle trousers. The material moves with every motion, whether you are sitting upright or attacking a gravel section. Ripstop reinforcements on knees and seat increase wear-resistance in the most stressed areas.
The combination of stretch and ripstop delivers motorcycle trousers that feel light yet perform solidly. The multi-layer construction breathes and dries quickly. Alpinestars tailored the cut anatomically to the female body.
What about protection?
The Stella Explore AST are CE AA-certified. That is a strong rating for motorcycle trousers with such a focus on ventilation.
- Nucleon Flex Plus knee protectors: CE Level 1-certified, flexible and ventilated. The protectors are height-adjustable for optimal positioning.
- Bio-Flex hip protectors: CE Level 1-certified, included as standard.
- External protector pockets: the knee protectors are in external zip pockets. This makes them quickly accessible and easy to remove when you step off the bike.
Women's fit with practical details
Alpinestars designed the Stella Explore AST specifically for women. The cut, proportions and pre-curving are anatomically adapted. The stretch construction supports that fit and ensures the motorcycle trousers move with you.
The side leg zips extending below the knee make it easy to put on and take off with motorcycle boots on. Belt loops are integrated into the waistband. The waist itself is not adjustable.
Ventilation for warm weather
The Stella Explore AST are designed for warm climates. The full construction breathes, and direct ventilation options provide extra airflow. A waterproof membrane and thermal lining are deliberately absent. In rain, separate motorcycle rain trousers are needed.
Practical details
- Cargo pockets with zips: ample storage for multi-day trips
- Leg zips below the knee: easy on and off
- Belt loops: integrated into the waistband
- No connection zip: these motorcycle trousers stand alone
Accessories and parts
The Stella Explore AST are available in various colours and sizes.
Maintenance
Good-quality motorcycle clothing is an investment in comfort and personal safety. After your purchase, invest in its maintenance too, so you can enjoy your gear for even longer. We have gathered the best tips and tricks on this maintenance page.
The opinion of our RAD specialist
AA certification for motorcycle trousers made entirely from stretch material is impressive. The Stella Explore AST prove that ventilation and protection can go together. The ripstop reinforcements on knees and seat do their job, while the rest breathes. The external protector pockets are a smart detail. They make the knee protectors quickly accessible when you step off the bike. The hip protectors are included as standard, which is not the case with many motorcycle trousers in this category.
Female riders seeking lightweight, breathable adventure motorcycle trousers for summer will find a well-thought-out choice in the Stella Explore AST.

