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Hydro Flask
Large Insulated Lunch Box

3.75 out of 5 stars
12 Reviews



Why We Like The Large Insulated Lunch Box

Whether we're heading to the office or spending the day on the trail, the Large Insulated Lunch Box keeps our day's meals chilled and ready-to-eat. In classic Hydro Flask fashion, this bag is impressively insulated and durably built, keeping our chow safe and tasty, even during a rowdy trek. This larger size can even stash lunch for two, keeping our hiking buddy happy while they haul the brews.


  • Grown-up lunch box stashes a meal and snacks for the day ahead
  • Durable construction for use from the woods to the urban jungle
  • Hearty, two-layer insulation keeps food chilled for hours
  • Stretch mesh pocket to stash utensils or smaller snacks
  • Flexible strap for comfy carry to the break room or picnic area
  • Fully-lined interior makes cleanup a simple task
  • Item #HYFZ031
nylon, polyeurethane
5L (305cu in)
[internal] 1 stretch mesh
Carry Straps
flexible handle
4 x 12.3 x 10.6in
Claimed Weight
1lb 10oz
Manufacturer Warranty
limited lifetime
casual, weekend camping, hiking