When you’re picking out ultralight hiking rain pants, think about how light they are, how well they keep you dry, how easily you can move in them, how long they last, how they fit, and any extra things they offer.
Seek a high hydrostatic head (3000+ is great) for strong waterproofing.
If you make the wrong call, you might end up with soggy and uncomfortable hikes, and the pants might not fit or work right, impacting your outdoor adventure.
But don’t worry, our guide is here to steer you toward the smartest choice for memorable hiking moments.
Key Specs
Weight: 3.52 ounces (100 grams)
Waterproof Rating: 15,000 HH
Price: $$
PROS
✅ Quiet
✅ Small pack size
CONS
❌ No pockets
The Montane Minimus Nano Pull-Over Waterproof Pants are a fantastic choice for those seeking the ultimate lightweight rain protection while hiking. These trousers are super light, making them perfect for hikers who want to move fast and light.
They won’t add extra weight to your pack, which is great for long journeys. These pants are made from a special fabric that keeps rain out while still letting your skin breathe, so you stay dry without feeling sweaty.
And don’t worry about that annoying “noisy” sound – these pants are comfy and quiet.
Key Specs
Weight: 2.82 ounces (80 grams)
Waterproof Rating: 20,000 HH
Price: $$
PROS
✅ Ultralight
✅ Small pack size
CONS
❌ Runs a bit large
Rab’s ultralight hiking rain pants, known as the Phantom Pants, are feather-light, highly packable, and constructed with durable waterproof materials.
We value the freedom of movement they offer, featuring pre-curved knees optimized for swift motion. The adjustable waistband and user-friendly leg hem design improve fit and convenience.
Additionally, we can emphasize their exceptional packable size, rendering them a reliable choice for unforeseen situations.
Key Specs
Weight: 6.06 ounces (172 grams)
Waterproof Rating: 20,000 HH
Price: $$$
PROS
✅ Great warranty
✅ Small pack size
CONS
❌ Not the most durable option
Outdoor Research’s ultralight hiking rain pants combine trusted durability with lightweight waterproof protection. These pants pack down small for emergencies or quick adventures.
The advanced Pertex Shield with Diamond Fuse Technology offers improved tear resistance and excellent breathability. Notably, they perform well as versatile camp or nighttime wear during crucial missions.
While careful handling is essential due to reported instances of tearing, these pants remain a valuable and highly recommended investment for reliable lightweight rain protection.
Key Specs
Weight: 9.77 ounces (277 grams)
Waterproof Rating: 10,000 HH
Price: $$
PROS
✅ Great material
✅ Has a drawstring
CONS
❌ Only one small pocket
The Black Diamond StormLine Stretch Rain Pants are designed to keep you dry and confident in unpredictable weather. These pants offer sleekness, durability, and comfort due to their stretchy fabric. The gusseted seat and articulated knees ensure freedom of movement while on-route.
We also highlight their perfect fit and compare them favorably to other rain pants. With a fair price, they emerge as a top choice for dependable rain protection.
Key Specs
Weight: 9.87 ounces (280 grams)
Waterproof Rating: N/A
Price: $
PROS
✅ Affordable
✅ Comfortable
CONS
❌ No waterproof rating available
❌ No front pockets
The men’s REI Co-op Trailmade rain pants offer waterproof and breathable comfort, letting you hike through rain with ease. Lightweight and durable, these pants have articulated knees and a crotch gusset for flexible movement.
While not entirely sweat-proof, they keep shorts dry and water out of boots. We found them handy for section hikes, though wet conditions caused some tearing. Leg zippers and a customizable waistband add convenience, but front pockets would be beneficial.
In general, these rain pants are practical for weekly and day hikes, offering good value for their weight and price.
When you’re choosing hiking rain pants, it’s important to pay attention to a few key factors.
First, make sure they fit well, considering that you might wear them over other layers. They should also be long enough to cover your shoes without getting bunched up.
Look for useful features like adjustable waistbands, long leg zippers for easy wear, durability for long-lasting use, zippered pockets to keep your dry items dry, and the ability to cinch the pant legs to keep mud and leeches out.
The fabric is also important because it affects breathability and overall performance. The price should align with how often you plan to hike in rainy conditions.
If it’s a regular thing, investing in high-quality rain pants is wise, but for occasional use, budget-friendly options will do the job.
If you’re on the hunt for a rain jacket, check out our guide here, where we’ve listed the TOP 5 lightest rain jackets available.
