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HMG 4400 Windrider

70 liters + external | 1103g | Load up to 27kg | 150D Dyneema®

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449,00 €

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HMG 4400 Windrider

The solution to the high-volume pack that weighs too much before it’s even loaded, the 4400 Windrider is ideal for expeditions and multi-sport adventures where resupplies are infrequent. Made for extreme environments, we designed these ultralight packs with 100% waterproof Dyneema® Composite Fabrics (formerly Cuben Fiber) and additional elastic frame sheets that provide support for extra load carrying capacity. Complement this pack with organizing, weatherproofing Stuff Sacks.


Body: DCH150

Bottom: DCH150

External Pockets: Mesh

WEIGHT: 1103g | 2.43 lbs | 38.9 oz

LOAD CAPACITY: Up to 27kg | 60 lbs


Interior: 70L (4400 cu. in.)

External: 9.8L (600 cu. in.)

Center pocket: 5L (300 cu. in.)

Side pockets: 2.5L (150 cu. in.)


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

Removable, contoured aluminum stays

Dyneema® Hardline shoulder straps with 3/8” closed cell foam and spacer mesh

Internal plastic frame sheet for added back panel support

1/4” foam back panel pad

Compression System

  • Roll-Top closure system with side compression straps for vertical compression
  • Side compression straps for horizontal compression
  • Top Y-strap compression -- Designed to secure gear

Dyneema® Hardline dual-density hip belt with 1/8” closed cell rigid foam, 1/4” closed cell foam and spacer mesh

Dyneema® Hardline zippered pockets on hip belt with #5 YKK zipper

Adjustable sternum strap with self-tensioning elastic

Ice Axe loop

Hydro port and internal mesh hydro sleeve

Four exterior triglide buckles for optional pack accessory straps

Proprietary seam sealing on all side seams and behind all sewn-on pack features


Top Circumference: 114.3cm (45”)

Bottom Circumference: 95.3cm (37.5”)

Height (fully unrolled): 97.8cm (38.5”)

Back Width: 26.7cm (10.5”)

Data sheet
Weight1103 g
Warranty2 years
Made inMexico
Size chart
  • Tilt your head slightly forward to locate the bony bump at the base of your neck. (This is your 7th cervical (or C7) vertebra).

  • Using a flexible tape measure, have someone measure starting at that spot and running down along the curve of your spine.

  • 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.

  • 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.

Small38cm - 43cm15.0” - 17.0” 
Medium43cm - 48cm17.0” - 19.0” 
Large48cm - 53cm19.0” - 21.0”
Tall> 53cm> 21.0”

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.

HMG pack size

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  • 30 days return policy
    30 days return policy
    100% money back

    30 days return policy

    You can return the product for any reason within the 30 days.

  • Express delivery
    Express delivery
    Next day delivery to all EU countries.

    Express delivery

    Choose Express delivery and you can start using gear the very next day.

  • Free Shipping
    Free Shipping
    Valid for all orders over 300 € within EU

    Free Shipping

    For all orders above 300€, we deliver within EU countries at no cost by standard courier service and with parcel tracking.

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