Epic 10.3
Epic 10.3
FREE USA SHIPPING AND RETURNS, LIFETIME GUARANTEE
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Perfect for half-day adventures, or those who simply don't need the larger size and capacity of the Epic 14.4. Click for Epic 10.3 review at The Radavist
All Epic 10.3 packs now come with Hydrapak bladders.
Features
- 10 liters of overall storage, 3 liter hydration capacity from included Hydrapak bladder.
- Low-profile lumbar design keeps the weight on your hips (and off your shoulders) and doesn't hit the back of your helmet while riding steep terrain or jumps.
- Industry-largest side pockets for easy one-handed access to ride essentials (phone, food, multi-tool, etc.) without removing the pack.
- Dual-purpose waist cinch secures the pack to your body and compresses pack contents for bounce-free descents.
- 3/4-zip large main compartment with separate area for hydration bladder makes stuffing oversize loads into the bottom of the pack easier.
- Top-zip secondary compartment for tool storage with divider and key clip. Large enough for high capacity MTB pumps and tubes.
- Low, wide, easy-fill Hydrapak hydration reservoir with quick-disconnect makes for easy cleaning, adding ice, etc.
- Magnet clip for securing bite valve to sternum strap.
- Minimalistic lash points on bottom for extra storage if needed.
- Oversized, durable YKK zippers and 210D nylon construction meant to handle all the dirt, sweat, sun and neglect you can throw at it. Made in a top-shelf factory that also makes outdoor gear for first responders.
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Helmet storage using shoulder straps.
- 1.5" wide waist strap for less pressure on your stomach.
- Soft, protected, tech pocket for fragile/small items.
- Velcro webbing keepers to minimize flappy excess material.
- Covered by our lifetime True North guarantee.
Fit
Our packs typically fit folks between 5'4" and 6'5". Near or below 5'4", particularly if you have a smaller frame, you may run out of adjustment room on the shoulder straps. Users slightly over 6'5" may be ok, depending on other dimensions (chest/torso size, etc.). We are happy to send you a free return label if it doesn't fit.
If you're close to the ends of our adjustment range, we have detailed fit videos available to give you the best shot of our packs fitting you.
Note: We are actively developing smaller strap sizes to accommodate those below 5'4", launching late-2026.

This pack is everything they claim it to be. Love it! Ill never go back to wearing a backpack on my bike again! Just wish there were clear instructions covering the bladder
This is my 2nd pack for my long ride and it’s amazingly comfortable and it’s the perfect size. Thank you.
Love my 10.3 pack. Had USWE and thought the NDM feature was amazing. As years got on, that monkey would not stop dancing. Along comes Arctos with another pack and I find that Ken figured it out. There is ALWAYS a better way and Ken found it. Kudos to Ken :)!!!
great pack, high quality and comfortable. -1 star because, with the design of the side pockets, it becomes a very large pack and a bit warm because of the wrap around pockets. I will try the swift instead. I like carrying 3L of water but don't need all the storage. Also, if side pockets could be smaller and skinnier, but wrap around to the front so I could reach the zipper that would be great.
Bottom line, best pack ever!