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Rocky Mountain Underground Core Pack 15 Daypack

Temporarily Out Of Stock

Don't get too bummed. This item is on the way and will be available for purchase as soon as it rolls into the warehouse.

Can't wait? Consider one of the other Men's Technical Daypacks we have in stock.

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Core Pack 15 Daypack

Whether you like to travel the trail by bike or by foot, this versatile daypack will be by your side even when you leave the mountains. It's got room for a hydration reservoir, organized storage for tools and gear, and a comfy, low-profile design that's easy to lug along wherever you roam.

  • Versatile daypack designed for trail sports and general travel
  • Organizer compartment keeps bike tools and extra layers handy
  • Hydration compatible design keeps you moving in hot weather
  • Harness and waistbelt are both breathable and supportive
  • Fleece-lined pocket won't scratch your phone or sunglasses
  • Aluminium perimeter frame lends structure and support
  • Laptop compartment makes this pack ideal for everyday use as well
  • Item #RMU000J

420D nylon
15L (915cu in)
aluminum frame
Shoulder Straps
Waist Belt
Hydration Compatible
fleece lined accesory, front tool organizer, laptop sleeve
[length large] 18.5in
Claimed Weight
[large] 2.5lb
Recommended Use
commuting, downhill, enduro, hiking, travel
Manufacturer Warranty

Tech Specs

What do you think about this product?


>Rating: 4

A biking backpack

I've used it several times
True to size
6` 1"
190 lbs

Well. Decided to write a review because it's pretty hard to find anything about this backpack. It was either this or some 10-15L hydration backpack from Osprey. After having this pack for a about a month and riding 2-3 a week I'm pretty happy with it. The nitpicky bad stuff: I fit a 2L bladder in there but there's really no good way to secure the nozzle that comes through the side and I end up sticking it in the shoulder pockets. With the 2L bladder, there's not that much room for space and it's like it separates it into 2 halves because the bladder is in the middle. I can usually fit my sweater in there and my wife's with some effort. If you load up this backpack with things the zippers are pretty hard to use and you need to squeeze the pack together in order to zip it up & at some times I feel like the seams want to rip but so far it hasn't. There isn't much stretch to the pack. What I like that I can think of right now: Pretty sturdy construction. Metal frame on the outside. It sits pretty well on the shoulders and even though my back is soaking wet at the end of the ride it's very breathable and I don't notice it all while riding. I was actually surprised to find my shirt wet because of how breathable it felt. Nice organizational pocket. My Crankbrothers Klic pump fits almost too perfectly along with my multitool and other goodies. The elastic mesh helmet strap is pretty awesome. Keeps all your gear together and if you make a stop somewhere it's great to be able to secure it well to your pack. I've only used it for biking but I'll be taking it with me to hikes and such. The waist strap is handy when traveling without the pack. I didn't like it on me with the pack because it's hard to access the pockets. But when I go on a short cruise I take the waist strap by it's self and it's like a fancy fanny pack. Buckles and straps are nicely made. Webbing is good quality. Overall, I'd recommend it to someone.