Front view of Hyperlite Mountain Gear's Windrider 40 Pack in White
Hyperlite Mountain Gear Packs Windrider
Left side view of Hyperlite Mountain Gear's Windrider 40 Pack in White
Right side view of Hyperlite Mountain Gear's Windrider 40 Pack in White
Back view of Hyperlite Mountain Gear Windrider 40 Pack in White showing hip belt and straps
Front view of Hyperlite Mountain Gear's Windrider 40 Pack in Black
Left side view of Hyperlite Mountain Gear's Windrider 40 Pack in Black
Right side view of Hyperlite Mountain Gear's Windrider 40 Pack in Black
Back view of Hyperlite Mountain Gear Windrider 40 Pack in Black showing hip belt and straps
Top view of Hyperlite Mountain Gear's Windrider 40 Pack in White
Left side view of Hyperlite Mountain Gear's Windrider 40 Pack in White on model
Right side view of Hyperlite Mountain Gear's Windrider 40 Pack in White on model
Front view of Hyperlite Mountain Gear's Windrider 40 Pack in White on model
Right side view of Hyperlite Mountain Gear's Windrider 40 Pack in Black on model
Left side view of Hyperlite Mountain Gear's Windrider 40 Pack in White on model
Front view of Hyperlite Mountain Gear's Windrider 40 Pack in Black on model
Detail shot of the chest strap and buckle on Hyperlite Mountain Gear's Packs Windrider 40 Pack in White
Detail shot of the buckle on Hyperlite Mountain Gear's Windrider 40 Pack in White
Interior view of Hyperlite Mountain Gear's Windrider 40 Pack in White
Detail shot of the exterior mesh on Hyperlite Mountain Gear's Windrider 40 Pack in White
Hyperlite Mountain Gear's Windrider 40 Pack's pocket with a smartphone for on-the-go connectivity
Detail of the White Windrider 40 backpack's white dyneema material with a logo in a triangular shape
Front view of Hyperlite Mountain Gear's Windrider 55 Pack in White
Front view of Hyperlite Mountain Gear's Windrider 55 Pack in White
Front view of Hyperlite Mountain Gear's Windrider 70 Pack in White
Front view of Hyperlite Mountain Gear's Windrider 70 Pack in Black
Hyperlite Mountain Gear Packs Windrider
Hyperlite Mountain Gear Packs Windrider

Windrider

4.8
Rated 4.8 out of 5 stars
468 Reviews
Volume
Torso Length
Color:White
Weight: 28.5 oz
Availability: In stock, ready to ship
Sale price$349.00

How to Choose a Pack Size

Your torso length, not your height, determines your pack size. We recommend the following to determine yours:

  1. Tilt your head slightly forward to locate the bony bump at the base of your neck. (This is your 7th cervical (or C7) vertebra).
  2. Using a flexible tape measure, have someone measure starting at that spot and running down along the curve of your spine.
  3. Place your hands on your hips so you can feel your iliac crest, which serves as the “shelf” of your pelvic girdle. (It’s the first hard thing you feel when you run your fingers down from the sides of your ribcage.) Position your hands so your thumbs are reaching behind you.
  4. Have your friend finish measuring at the point where the tape crosses an imaginary line drawn between your thumbs. This distance is your torso length.
    • Small (15.0” - 17.0” torso)
    • Medium (17.0” - 19.0” torso)
    • Large (19.0” - 21.0” torso)
    • Tall (21.0”+ torso)
  5. If your measurement falls right in between sizes (for example, if you have a 17.0” torso, so you are right on the line between a Small and a Medium), we suggest you choose the larger torso size.

WATCH THE VIDEO


How to Choose a Pack Size

How to Choose a Pack Size

Your torso length, not your height, determines your pack size. We recommend the following to determine yours:

  1. Tilt your head slightly forward to locate the bony bump at the base of your neck. (This is your 7th cervical (or C7) vertebra).
  2. Using a flexible tape measure, have someone measure starting at that spot and running down along the curve of your spine.
  3. Place your hands on your hips so you can feel your iliac crest, which serves as the “shelf” of your pelvic girdle. (It’s the first hard thing you feel when you run your fingers down from the sides of your ribcage.) Position your hands so your thumbs are reaching behind you.
  4. Have your friend finish measuring at the point where the tape crosses an imaginary line drawn between your thumbs. This distance is your torso length.
    • Small (15.0” - 17.0” torso)
    • Medium (17.0” - 19.0” torso)
    • Large (19.0” - 21.0” torso)
    • Tall (21.0”+ torso)
  5. If your measurement falls right in between sizes (for example, if you have a 17.0” torso, so you are right on the line between a Small and a Medium), we suggest you choose the larger torso size.

WATCH THE VIDEO


How to Choose a Pack Size

The Windrider is our original pack and consistent best-seller, designed for on-trail, off-trail, and all-season environments. This versatile pack is ideal for any backcountry activity, from weekend hikes to demanding thru hikes. Built with mesh exterior pockets, it offers visibility of contents, ventilation, and the ability to dry damp gear while on the move. The pack combines lightweight, waterproof Dyneema® composite fabric with a proven, durable design, helping to decrease weight, increase comfort, and boost confidence in rugged terrain and changing weather.

KEY FEATURES:
  • Mesh fabric exterior pockets offer visibility of contents and allow wet gear to dry while on the move.
  • Side and over-the-top compression straps securely hold external gear, preventing shifting and stabilizing your load.
  • Hydroport and internal mesh sleeve provide easy access to water, ensuring hydration is quick and convenient.

Product Walkthrough Video | Windrider

WHY CHOOSE THE WINDRIDER?

A white triangle logo on a black background.

ULTRALIGHT ORIGINAL

Our original backpacking pack with external mesh pockets provide ample room for gear without having to open your pack and dig

A white triangle logo on a black background.

WATERPROOF MATERIALS

Pair with our Stuff Sacks for a buttoned up, nearly waterproof kit

A white triangle logo on a black background.

EXTERNAL POCKETS

Three external mesh pockets -- Makes it easy to see what's in your pockets and allows gear to dry faster

4.8
Rated 4.8 out of 5 stars
Based on 468 reviews
Total 5 star reviews: 412 Total 4 star reviews: 46 Total 3 star reviews: 4 Total 2 star reviews: 1 Total 1 star reviews: 5
98%would recommend these products
468 reviews
  • Joe V.
    Verified Buyer
    Age Range 45 - 54
    What activities did you use this product for? Backpacking, Day Hiking, Other
    What size pack did you order? Medium
    2 months ago
    Age Range 45 - 54
    What activities did you use this product for? Backpacking, Day Hiking, Other
    What size pack did you order? Medium
    Reviewing
    Windrider
    Rated 5 out of 5 stars
    4th HMG Pack

    Ordered for my wife...

    Our 5th pack from HMG. We also own a tarp, phone cases, and fanny packs. It is safe to say we trust their gear.

    My wife wanted the 40L windrider to replace her 55L Junction. She loves it!

  • Michelle P.
    Verified Reviewer
    Age Range 35 - 44
    What activities did you use this product for? Backpacking, Thru Hiking
    What size pack did you order? Medium
    6 months ago
    Age Range 35 - 44
    What activities did you use this product for? Backpacking, Thru Hiking
    What size pack did you order? Medium
    Reviewing
    Windrider
    Rated 5 out of 5 stars
    I don’t know how a backpacker uses a mainstream pack

    Love this pack!!

    I admit, this is also the only pack I’ve used for backpacking/thru/section hiking… I went straight for the good stuff offthebat.

    But having used this pack, I just can’t fathom how awkward, heavy, and inconvenient a typical, conventional pack from a mainstream outdoor equipment store must be.

    By rejecting all of the typical pack “features”, it gains SO much practicality.

    The only thing I wish it had would be load lifting straps. My first trip with it chaffed my collar bones pretty good. I’ve been testing out mods since then, and found that the over-the-top strap that connects just above both shoulder straps can be re-routed through the daisy chains on the frknt of each shoulder strap to act like load lifters and shift the weight from my collar bones to the tops of my shoulders. It’s a little janky, and requires a quick adjustment to prevent lopsidedness every time I put the pack on, but it’s a significant improvement without adding any weight.

  • Yair
    Verified Reviewer
    Age Range 55 - 64
    What activities did you use this product for? Backpacking, Alpine/Ice Climbing, Packrafting/Paddle, Skiing/Snowboarding
    What size pack did you order? Large
    9 months ago
    Age Range 55 - 64
    What activities did you use this product for? Backpacking, Alpine/Ice Climbing, Packrafting/Paddle, Skiing/Snowboarding
    What size pack did you order? Large
    Reviewing
    Windrider 70
    Rated 5 out of 5 stars
    Been a while and to many places, still works great

    purchased the original version ( the 4400) quite a few years back- used extensively every year for multiple multi-day trips in all seasons in many countries- and can carry loads of gear comfortably and with confidence this pack will last the journey. Great Gear, a great investment for the long term!

  • Robert
    10 months ago
    Reviewing
    Windrider 55
    Rated 5 out of 5 stars
    5 Stars

    A perfect ultralight backpack with great capacity.

  • Paul D.
    Verified Buyer
    Age Range 55 - 64
    What activities did you use this product for? Backpacking
    What size pack did you order? Medium
    10 months ago
    Age Range 55 - 64
    What activities did you use this product for? Backpacking
    What size pack did you order? Medium
    Reviewing
    Windrider 55
    Rated 5 out of 5 stars
    Great Pack

    Fit was excellent, Very light yet durable. 4 day trip was perfect.