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Description
hyperlite mountain gear windrider 3400 Windrider 55 Pack by Hyperlite Mountain GearShips in 1 2 Days Based in Biddeford, ME Est. 2010 Hyperlite Mountain Gear's original backpacking pack The Windrider 55 is an adaptable, versatile, capable tool for nearly any adventure. Three external mesh pockets provide ample room for gear without having to dig in your pack, and allows gear to dry fast. Made with fully woven Dyneema 200 denier fabric that offers more durability with the same signature lightweight and 100% waterproof qualities as
Ships in 1-2 Days | Based in Biddeford, ME | Est. 2010
Hyperlite Mountain Gear's original backpacking pack
The Windrider 55 is an adaptable, versatile, capable tool for nearly any adventure. Three external mesh pockets provide ample room for gear without having to dig in your pack, and allows gear to dry fast. Made with fully woven Dyneema® 200-denier fabric that offers more durability with the same signature lightweight and 100% waterproof qualities as other Dyneema® fabrics. The Windrider is a comfortable pack that delivers premium performance for wherever you're headed.
Features:
- Internal frame with two removable aluminum stays
- Padded non-removable hip belt with pockets
- Made with exclusive Dyneema® Woven Composite 3.9: this fabric provides exceptional abrasion resistance, feels better to touch, and reduces crinkling in cold conditions
- Roll-top closure system with vertical compression straps that allows you to adjust the pack's volume, keeping the load compact, stable, and protected from the weather
- Top Y-strap provides compression and top-of-pack storage for gear
- Integrated 1/4" foam back panel adds cushioning and support for a more comfortable carry
- Redesigned outside pockets with more depth and lower back edges for easier access to water bottles and improved gear security
- Zippered hip belt pockets offer easy access to essentials
- Two removable contoured aluminum stays offer support and help distribute the load
- Seam taped on all vertical side seams and behind sewn-on pack features enhances water resistance, keeping your gear dry
- Sternum strap allows for easy adjustments along shoulder strap daisy chains
- Shoulder straps with frequent bartacks for increased sternum strap adjustment options allow for a customized fit
- Shoulder straps feature an adjusted shape for a more natural curve around your neck, providing enhanced comfort
- Removable side compression straps for versatile gear attachment options
- Streamlined hydration system featuring a simple bladder hang loop and repositioned hydroport
- Sewn-through back panel construction creates a curved shape that locks the interior panel in place, providing a more comfortable and durable fit
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Specs
Volume: 55L
- External: 13.4L
Number of External Pockets: 5
Recommended Maximum Load Capacity: 40lbs | 18kg
Sizing:
- Small: 15” - 17” torso | 38.1cm - 73.2cm
- Medium: 17” - 19” torso | 73.2cm - 48.3cm
- Large: 19” - 21” torso | 48.3cm - 53.3cm
- Tall: 21”+ torso | 53.3cm+
*See our backpack sizing page to learn how to fit a backpack
Weight: 31.1oz | 880g (medium)
Dimensions: 36"H (fully unrolled) x 11"W | 91.4cm x 27.9cm
- Circumference (Top / Bottom): 40” / 33.5” | 101.6cm / 85.1cm
Materials:
- Body: Dyneema® Woven Composite 3.9
-
External Pockets: Large Hole Mesh
- Shoulder Straps & Hipbelt: Hardline with Dyneema®, Closed cell foam, Spacer mesh
- PFAS-Free
Made in Mexico
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 1650 reviews
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Product Reviews
★★★★★ 5
I want to live in these
Color: 01-multicolour (4-pack), Size: Medium
I bought 4 different sets of new underwear. Unfortunately these came last. It’s unfortunate, because if they had come first I would have cancelled all my other orders or returned them and ordered more of these. I never want to wear anything else ever again; these are the comfiest undies I’ve ever owned, I want to live in them. I can wear them under pretty much anything except leggings or very tight pants (but let’s be honest, I don’t wear those anyway.)
They are incredibly soft and breathable, they wash well, don’t roll, keep my thighs from rubbing, are comfy to sleep in, and the colors were true to the photo.
Just a heads up, they are on the thin side and just a bit see through in the rear.
I’m 5’5” 140lbs and the mediums fit perfectly, they go about mid-thigh.
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Reviewed in the United States on July 30, 2025
★★★★★ 5
Extremely comfortable
Color: 02-multicolour (4-pack), Size: X-Large
These are by far the softest and most comfortable underwear I have ever owned. The leg portion absolutely does roll up as so many others have mentioned, however, I did not find that to be uncomfortable at all just annoying that they don’t stay in place.
I bought these specific underwear to see if it would help alleviate HS symptoms at all. They have definitely helped with wicking moisture away from the skin. More time will tell if it’s truly helpful for HS. For now, I will recommend these. They are thin, breathable, butter soft, wick moisture comfortable and I would buy again…maybe in a different style next time. I have washed them several times and they seem to be holding up rather well so that is also of supreme importance given the cost of the item.
Again, I would recommend this item and plan on purchasing more in a different style very soon.
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Reviewed in the United States on September 13, 2025
★★★★★ 3
Eaten by my Thighs
Color: 04-multicolour (4-pack), Size: X-Large
I wanted to love them. Sadly they have let me down.
Pros: natural breathable fabric , super soft and comfortable, cotton panty gussets for feminine health and panty liners will stick!! Yay:). And the colors! They are great!
But here’s the Con. And it’s the con of all cons.
THEY RIDE UP!! Eaten by my thighs. I’m 5’6” and in the general area of 175. I fluctuate depending on how many times I visit the bakery! :) I don’t have a thigh gap but it is not a super tight thigh squeeze. I seldom have thigh climb but these do. I tried two different sizes to see if that made a difference. Nope.
I was miserable at a recent theme park in these. I was wearing long heavy dresses and it was quite awkward to yank these legs down non stop.
They feel amazing and they have all the requirements
1. Soft
2. Comfortable and stretches with you
3. Breathable with nice thin fabric. Not bulky
4. Natural fibers
5. Great colors
If you are a person that is not blessed with Thunder Thighs, please order these. They are great! I wear them at home and to locations that I will not be doing a lot of walking at. I have washed them so many times and they look like new still.
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Reviewed in the United States on October 4, 2025
★★★★★ 5
Best Boxer Briefs for Women!
Color: 09-multicolour (4-pack), Size: Large
I rarely give 5⭐️’s but these deserve it! Hands down, the most comfortable material, stitching, waistband, moisture wicking and overall comfort. They sit right beneath my bellybutton, they wash and dry well and they’re sturdy. I have tried 3 styles and these are the best.
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Reviewed in the United States on February 7, 2026
★★★★★ 5
Super soft and comfortable!
I haven't bought new underwear in forever. I used to wear thongs, but now find them incredibly uncomfortable. The last few times I've tried to buy new underwear, the sizing was either way off (I'm a medium, but gave up after having to return them for a large and then extra large) or the quality was horrible (two brands stretch waaaay out and they can fall down while wearing them (I have larger ass-ets, so they shouldn't start to slide down during use). I tried these after buying some bamboo pyjamas and I love them! They are incredibly soft, comfortable, and stretchy. I can use them all day, and they work well, whether I'm lounging on the couch or wearing them under my spandex shorts at the gym, they don't ride up or slide down. They are both comfortable and look sexy, while providing support in all the right places. I haven't had them too long, so I can't speak on the durability, but they appear to be of good quality and I plan to order more, this time without the band.
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Reviewed in the United States on November 13, 2025