This product is not available. Good news: we have a newer version.

Shop newer version

With its function-first design, the Mountainsmith Day Lumbar pack offers efficient storage for your on- and off-trail adventures, so you can keep all your hiking and travel essentials handy.


  • Front stash pocket with elastic cord compression
  • Zippered front panel pocket with key clip
  • Interior foam-padded sleeve to carry a tablet
  • Inner Sanctum™ interior zippered compartment for small valuables
  • Smartphone-compatible waistbelt pockets fits plus-sized phones
  • Headphone port
  • Bright yellow liner adds visibility to contents
  • Reinforced side bottle pockets fit up to 32 fl. oz. (1 L) bottles
  • Back panel stash pocket ideal is for securing your passport or boarding pass
  • FreeFlow ridged EVA back panel padding
  • Delta Compression system load adjustment
  • Bottom panel compression straps
  • Removable 1.5 in. shoulder strap
  • Waistbelt fit: 28–48 in.
  • Strapette compatible (not included)


View all Mountainsmith Hiking Waistpacks

Technical Specs

Item #218742
Best Use


Frame Type


Gear Capacity (L)

13 liters

Gear Capacity (cu. in.)

800 cubic inches


1 lb. 12 oz.

Fits Waist/Hips

28-48 inches


420-denier Oxford nylon/420-denier HD nylon ripstop/210-denier nylon liner

Number of Exterior Pockets

6 + main compartment


13 x 12 x 6 inches

Pack Access

Top / Panel



3 reviews with an average rating of 4.0 out of 5 stars

Loading Reviews...

Questions & Answers

Loading Questions...