The Alpkit Parallax waterproof trousers are designed for those who move fast and travel light. Whether you’re trail running in the hills, hiking through unpredictable weather, or bikepacking across remote terrain, these trousers promise to deliver reliable protection without weighing you down. Built with a focus on breathability, packability, and freedom of movement, the Parallax trousers have earned a loyal following among outdoor enthusiasts who value performance and simplicity.
Materials and Construction
The Parallax trousers are made from a 2.5-layer waterproof fabric that strikes a balance between durability and weight. The material is soft to the touch, quiet in motion, and has a slight stretch, which makes it comfortable for high-output activities like running or fast hiking. The waterproof rating sits at 20,000mm hydrostatic head, which is more than enough to handle heavy rain and prolonged exposure to wet conditions. Taped seams throughout ensure that water stays out, even in driving rain.
Despite their technical performance, the trousers weigh just 195g in a women’s medium, making them one of the lightest waterproof trousers in their category. This low weight is a major selling point for anyone trying to keep their pack as light as possible, especially for multi-day trips or races where every gram counts.
Fit and Comfort
Alpkit has nailed the fit with the Parallax. The cut is athletic without being restrictive, offering enough room for layering underneath while still maintaining a streamlined silhouette. The fabric’s slight stretch adds to the comfort, allowing for a full range of motion whether you’re scrambling over rocks or jogging down a trail.
The elasticated waistband includes a drawcord for adjustment, ensuring a secure fit without digging in. The ankle cuffs feature Velcro tabs that help seal out water and keep the trousers snug over boots or trail shoes. These tabs also secure the half-length zips, which make it easier to pull the trousers on and off without removing footwear.
Breathability and Ventilation
One of the standout features of the Alpkit Parallax waterproof trousers trousers is their breathability. While many waterproof trousers can feel clammy or trap heat during exertion, the Parallax manages to stay comfortable even during high-output activities. The 2.5-layer fabric allows moisture to escape, helping regulate temperature and reduce sweat build-up.
Users have reported wearing the trousers during summer storms and fast-paced hikes without experiencing the dreaded “boil-in-the-bag” effect. While there are no dedicated ventilation zips, the lightweight fabric and smart design make up for it, especially considering the trousers’ minimalist ethos.
Packability and Storage
When not in use, the Parallax trousers pack down to the size of a grapefruit. This makes them ideal for stashing in a running vest, bikepacking bag, or the side pocket of a hiking rucksack. The included stuff sack is simple but effective, and the trousers compress easily without damaging the fabric.
This level of packability is a major advantage for anyone who needs emergency waterproofs but doesn’t want to carry bulky gear. Whether you’re heading out for a day hike or planning a multi-day adventure, the Parallax trousers are easy to bring along “just in case.”
Real-World Performance
In real-world conditions, the Alpkit Parallax waterproof trousers trousers perform admirably. They’ve been tested in everything from light drizzle to torrential downpours, and consistently keep the wearer dry. The waterproofing holds up well over time, though like all waterproof gear, they benefit from occasional reproofing to maintain peak performance.
One user noted that the trousers kept them dry during a stormy run across the Peak District, while another praised their performance during a multi-day hike in the Scottish Highlands. The trousers also hold up well to abrasion, with reinforced areas around the knees and seat offering extra durability where it’s needed most.
Limitations and Considerations
While the Parallax trousers excel in many areas, they’re not without limitations. The half-length zips, while functional, may be shorter than expected for some users, especially those wearing bulkier boots. Additionally, the trousers lack pockets, which is a deliberate design choice to reduce weight and bulk, but may be a drawback for those who prefer quick-access storage.
Another consideration is long-term waterproofing. Some users have reported that the trousers lose their waterproof effectiveness over time, particularly if not reproofed regularly. However, this is a common issue with lightweight waterproof gear and not unique to the Parallax.
Value for Money
At a retail price of £95.99 (RRP £119.99), the Alpkit Parallax trousers offer excellent value for money. They’re significantly cheaper than many competitors, including the Patagonia Torrentshell and Arc’teryx Alpha Pants, while still delivering comparable performance. In fact, in a group test by Trek and Mountain magazine, the Parallax trousers were awarded Editors’ Choice for their combination of weight, performance, and affordability.
For budget-conscious adventurers who don’t want to compromise on quality, the Parallax trousers are a smart investment. They deliver high-end performance at a mid-range price, making them accessible to a wide range of outdoor users.
Ideal Use Cases
The Alpkit Parallax trousers are best suited for:
- Trail running and fell running
- Fastpacking and ultralight hiking
- Bikepacking and cycle touring
- Emergency waterproofs for hillwalking
- Lightweight travel and backpacking
Their minimalist design and low weight make them ideal for situations where pack space is limited and speed is a priority. They’re also a great choice for race kits that require waterproof trousers with taped seams and a high hydrostatic head rating.
Comparison with Other Lightweight Waterproof Trousers
| Feature | Alpkit Parallax | Montane Podium Pants | Patagonia Torrentshell | Arc’teryx Alpha Pants |
|---|---|---|---|---|
| Weight (Women’s Medium) | 195g | ~100g | ~300g | ~335g |
| Waterproof Rating | 20,000mm | 15,000mm | 20,000mm | 28,000mm |
| Breathability | Good | Moderate | Good | Excellent |
| Price Range | £95.99 | £69 | £140 | £200+ |
| Packability | Excellent | Excellent | Good | Moderate |
| Pockets | None | None | Yes | Yes |
| Ventilation Zips | Half-length | None | Full-length | Full-length |
The Parallax trousers hold their own against more expensive options, offering a strong balance of weight, waterproofing, and breathability. While they may lack some of the bells and whistles of premium models, they deliver where it counts.
Final Verdict
The Alpkit Parallax waterproof trousers are a lightweight, packable, and highly functional option for fast-moving outdoor pursuits. With a smart cut, reliable waterproofing, and excellent breathability, they’re ideal for runners, hikers, and bikepackers who need protection without bulk. While they’re not the most feature-rich trousers on the market, their performance and value make them a standout choice in the ultralight category.
For anyone looking to upgrade their emergency waterproofs or build a minimalist kit for multi-day adventures, the Parallax trousers are well worth considering. They’re proof that you don’t need to spend a fortune to get dependable gear that performs when it matters most.
