4400 Ice Pack
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Hyperlite Mountain Gear - 4400 Ice Pack

Hyperlite had K2, the Latoks and Alaska’s Hayes Range in mind (places where weight really makes a difference) when they honed their 4400 Ice Pack for the rugged alpine climber and ski touring maniac. They streamlined this minimalist expedition backpack to carry exactly what you need and nothing more for multiple days in the most extreme or high altitude environments. It’s large enough for the traverse in, yet minimalist and light enough for the day on the wall. Like all of the Hyperlite 70-liter packs, this ultralight pack has additional plastic frame sheet for added load carrying capacity. Made from 100% waterproof Dyneema® Composite Fabrics (formerly Cuben Fiber), the 4400 Ice Pack is highly durable and weatherproof.

Technical specifications & features

Weight 2.56 lbs | 41.0 oz. | 1162 g
Gender Men's & Unisex
Made in USA
Carry On Size N/A
Cubic Inches 4400
Liters 70
Material Body: 150D Cuben/Polyester Hybrid
Bottom: Double reinforced 150D Cuben/Polyester Hybrid
Crampon Patch: Spectra Hardline
Waterproof Yes
Dimensions N/A
Other Features TORSO RANGE SML: 15 in. - 17 in.
MED: 17 in. - 19 in.
LRG: 19 in. - 21 in.
TALL: 21 in. +

Load capacity: 30 – 60 lbs

Top Circumference: 45 in. (114.3cm)
Bottom Circumference: 37.5 in. (95.3cm)
Height (fully unrolled): 38.5 in. (97.8cm)
Back Width: 10.5 in. (26.7cm)

• Made in Maine
• External crampon and ice axe attachment system
• Four external daisy chains
• Removable, contoured aluminum stays
• Spectra Hardline shoulder straps with 3/8” closed cell foam and spacer mesh
• Compression System
- Roll-Top closure system with side compression straps for vertical compression
- Four side compression straps for horizontal compression
- Top Y-strap compression -- Designed to secure gear
• Internal zippered pocket
• Spectra Hardline hip belt with 1/8” closed cell rigid foam, 3/8” closed cell foam and spacer mesh
• Hip belt optional with gear loops or zippered pockets with #5 YKK zipper
• Adjustable sternum strap with self-tensioning elastic
• Proprietary seam sealing on all side seams and behind all sewn-on pack features
• Spectra Fiber Tex 69 thread

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