The Halo PRO Drystar XF motorcycle trousers are the successors to a highly versatile adventure motorcycle trouser. Just like the matching motorcycle jacket, Alpinestars uses a laminated construction here, with the Drystar XF membrane now permanently integrated into the 3‑layer stretch ripstop outer shell.
Waterproofing is therefore no longer a matter of separate overtrousers or inner liners. On the Halo PRO Drystar XF motorcycle trousers, waterproofing is simply built in. Versatility now comes mainly from the advanced ventilation system.
The large ventilation panels on the thighs are the most striking feature. Open the water‑resistant YKK AQUASEAL zips to reveal wide mesh panels that allow cool air to flow directly inside. The laminated build provides excellent waterproofing, while maintaining strong breathability. From peak summer heat to very wet and quite cold conditions, it is effectively just a matter of a few zips and a bit of routine.
This is clearly a pair of motorcycle trousers that will appeal to adventure riders. Goatskin inserts on the inside of the knees offer optimal grip on the tank and extra durability. PU reinforcements on the knees, ripstop fabric at the seat and dobby‑reinforced nylon at the shins and ankles add extra wear‑resistance in demanding areas. Calf‑width adjustment with zips allows a good fit over both adventure and MX boots. That is not a minor detail; it is the difference between motorcycle trousers that work and motorcycle trousers that get in the way.
Nucleon Flex Pro Level 2 knee protectors are flexible, highly ventilated in their own right and adjustable within the lining. Nucleon Bio‑Flex Level 1 hip protectors complete the impact protection. Together with the wear‑resistant textile, this results in an AA certification under EN 17092‑3:2020.
Ergonomics leave nothing to be desired. An adjustable waist with magnetic buckle closure provides a personalised fit. The Halo PRO Drystar XF lets you change riding position easily, whether you are on asphalt or gravel and whether you are seated or standing on the pegs. The full‑stretch construction guarantees freedom of movement and comfort.
Two water‑resistant cargo pockets on the sides provide practical storage for adventure riding.
The Halo PRO Drystar XF motorcycle trousers are a strong option on their own, but pairing them with the matching motorcycle jacket is the obvious choice. Their versatility in all weather conditions makes the full Halo PRO package an excellent option for adventure riders who stay on the move all day long.
There is maintenance clothing, and then there is clothing maintenance. Good, solid motorcycle clothing is an investment in comfort and personal safety. So invest in its maintenance after your purchase and enjoy your gear for longer.
We put the best tips and tricks on this maintenance page.

