The Borealis Convertible Pack adapts to what you need: You can use it as a lumbar pack or expand the volume to use it as a daypack.
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Converts from a daypack to a lumbar pack
Lightweight ripstop material
Articulated shoulder straps
Daisy-chain webbing offers lash points
Secure-zip main compartment
Two external, secure-zip stash pockets
Zip access to bottom of pack
Comfortable, padded top grab handle
Stowable hipbelt
Coated, abrasion-resistant, recycled-polyester boot fabric
Reflective details
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Style: NF0A88TK
Fabrics: 210D recycled nylon ripstop
Non-PFC durable water-repellent (non- PFC DWR) finish
Size: One size
Avg weight: 1 lb 2.3 oz (520 g)
Volume: 1068 in3 (17.5 liters)
Dimensions: 17.7' x 11.4' x 4.9' (45 cm x 29 cm x 12.5 cm)
U-pull YKK zippers are easy to grab
Stretch-mesh water bottle pocket on front
External bungee-compression system offers options for organization
Coated, abrasion-resistant, recycled-polyester boot fabric
The North Face Men's Borealis Convertible Backpack