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Mountainsmith Day Lumbar Pack


All Day Every Day

It’s been more than four decades since Mountainsmith introduced the Day Lumbar Pack, and it’s been continuously refined during that time, making the latest version easily the best one yet. The generous 13L volume matches most compact day packs, giving you room for food, layers, water, and the rest of the ten essentials. If you load it down, you might consider adding a set of Mountainsmith Strapettes (sold separately), which lets your shoulders share the load. And in a nod to today’s technology, the Day pack now has a padded interior sleeve for a tablet, and the waist belt pocket is sized to accommodate larger smartphones. Whether you’re touring, hiking, or just checking out a new corner of the world, this is one pack that’s got your (lower) back.


  • Versatile lumbar pack for hiking, touring, and general outdoor use

  • Interior foam padded sleeve accommodates a tablet
  • Smartphone compatible waist belt pocket
  • Ridged EVA back panel adds ventilation for extra cooling
  • Front compression attachment system adds extra capacity
  • Compatible with Strapette straps (sold separately)


  • Best Use: Hiking, Ski Touring, Everyday

  • Gender: Unisex
  • Volume: 13L
  • Weight: 1 lb 12 oz
  • Dimensions: 13” x 12” x 6”
  • Material: 420 Oxford nylon, 420 HD nylon ripstop, 210D nylon