Alpinestars · Pants · Street
The Alpinestars Stella Flex-AST 5 Denim Pants are street-focused motorcycle riding pants built for riders who want a casual denim look paired with purpose-built protection. They use a monolayer tech denim construction designed for lightweight comfort while delivering abrasion resistance in a streamlined, single-layer build.
Designed around an anatomically engineered women’s fit, these pants feature a regular slim cut and a raised back waist to help maintain coverage in the riding position. For impact coverage, they come equipped with Alpinestars Nucleon Flex Plus Level 1 knee protectors, and the knee protector pockets allow position adjustment for a more personalized fit.
A single-layer, monolayer tech denim chassis keeps the Stella Flex-AST 5 Denim Pants feeling light and easy to wear while still being engineered for abrasion resistance. A multi-stretch fabric blend of cotton, polyester, and polyamide adds flexibility for everyday movement on and off the bike, without the bulk of layered constructions.
These pants are rated as a CE Category II EN 17092-4:2020 A certified riding garment. For impact protection, they include Alpinestars Nucleon Flex Plus Level 1 knee protectors designed to be lightweight and adaptive, and the construction uses reinforced hidden dual seams with overlock stitching for added strength in key areas.
Built around an anatomically engineered women’s regular slim fit, the Stella Flex-AST 5 Denim Pants are shaped to sit naturally in and out of the saddle. A raised back waist is designed to improve coverage and comfort when leaning forward in the riding position, helping the jeans feel more secure during street rides.
Comfort
To fine-tune how the included knee protection sits, the Stella Flex-AST 5 Denim Pants use knee protector pockets that allow height adjustment. The pocket system offers three height positions, letting a rider dial in placement for better alignment with the knee while seated on the bike. This adjustability also helps accommodate different leg lengths and preferred riding postures while keeping the pants’ regular slim silhouette.
| Included | Nucleon Flex Plus Level 1 knee protectors included. |
|---|---|
| Included | For impact protection, the Alpinestars Stella Flex-AST 5 Denim Pants are equipped with lightweight and adaptive Alpinestars Nucleon Flex Plus Level 1 knee protectors, with adjustable pocket positioning for a more customized fit. |
| Optional — sold separately | Adjustable knee protector pockets with three height positions. |
As stated by Alpinestars for this pants. Optional and compatible equipment is sold separately unless it is listed as included.
| Monolayer tech denim construction for lightweight comfort and abrasion resistance. |
| CE Category II EN 17092-4:2020 A certified riding garment. |
| Anatomically engineered women’s regular slim fit. |
| Multi-stretch fabric blend for improved mobility and flexibility. |
| Nucleon Flex Plus Level 1 knee protectors included. |
| Adjustable knee protector pockets with three height positions. |
| Raised back waist for added riding coverage and comfort. |
| Reinforced hidden dual seam and overlock stitching for added strength. |
As listed by Alpinestars for this pants.
Provided by Alpinestars. Opens in a new tab.
