Alpinestars St-1 Waterproof Pants – Dark Blue / Black / Bright Red

The alpinestars ST-1 Waterproof Pants are motorcycle trousers with a fixed waterproof liner and a detachable 80 g thermal liner. Their ACTIVE touring fit has pre-curved legs, 3D-shaped knees and a flexible crotch. A fixed mesh liner is also included.

The trousers are made from a 600D poly-fabric blend, with ripstop reinforcements on the inner legs. CE Level 1 Nucleon Flex Plus knee protectors have a three-tier, colour-coded positioning system. The garment is CE Category II EN17092-4:2020 A Class; impact protection is certified to EN17092-6:2020 C Class Impact.

• Two front zippered pockets
• Hook-and-loop ankle adjusters and waist volume tabs
• Connection zip for integration with Alpinestars jackets
• Reflective detailing on the thighs
• Colours: dark blue, black and bright red

The UK waist size guide gives S: 30 (31 length), M: 32 (31 length), L: 34 (32 length), XL: 36 (33 length), 2XL: 38 (34 length), 3XL: 40 (35 length) and 4XL: 42 (33 length). Alpinestars garments can fit smaller than other brands, so a size up from a previous motorcycle trouser may be needed to allow for the thermal liner. The guide is approximate and cannot determine an exact size.