Summit Bum™ Pocket by Thrupack


Color: White ULTRA200
$ 69.99


Ships in 1-2 business days | Based in Norfolk, VA | Est. 2017

This is a variation of Thrupack's flagship model the Summit Bum™ which incorporates a stretch pocket in front of the zippered compartment. It’s a perfect spot for sunglasses! 

The Summit Bum™ series is at the apex of lightweight durability. It’s designed to hold up to everything that you can, without getting in your way and without weighing you down. The Summit Bum™ series is a versatile pack-style that can be used in a number of ways! The goal is a simple and elegant design that allows the user to easily adapt it to their specific needs as they move from camp to trail and from trail to town.


  • Easy-access pocket large enough for most smartphones
  • Fits any strap less than 2" wide
  • Loops on top two corners to attach carabiners or other rigging
  • 2 Internal pockets large enough for a small wallet
  • Reflective zipper pull
  • Internal mitten-clip
  • Removable 1" webbing-strap

Note: 1" Webbing-strap included, Comfy strap sold separately HERE.

Note: Thrupack is switching from VX21 to a more well-rounded fabric known as ULTRA, which is light, puncture-resistant, and waterproof. Additionally, the new ULTRA fabric utilizes recycled materials!



  • Capacity: 2.5L
  • Dimensions: 9” x 5” x 3”
  • Total adjustable belt-length: 50”

Weight: 2.7oz (no strap), 3.7oz (with standard strap), 4.9oz (with Comfy strap)


  • ECOPAK, Ultra 200, VX21 or HDPE Gridstop
  • 3D spacer-mesh
  • #5 Nylon Zipper w/ polyurethane coating
  • 1" Nylon webbing
  • 1” YKK Plastic Buckle


• 9"x5"x3" (23cm x 13cm x 8cm)

• 2.5L

• Alone - 2.5 oz (71g)
• With Standard Strap - 3.5 oz (99g)
• With Comfy Strap - 4.7 oz (119g

• Laminated VX21, VX25,
or polyurethane-coated 210D Dyneema X Gridstop
• 3D spacer-mesh
• YKK #3 Aquaguard zipper
• 1" Nylon webbing
• 1" YKK heavy duty buckle

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