All the packs in our Octane series are made from ultra-light materials so they’re optimal for adventure racing, trail running or XC bike riding — anything where you need to move fast and minimize weight.
The Octane LR moves the 2 liter Antidote™ Lumbar Reservoir down around your waist for greater comfort and stability — integrated lumbar compression prevents your hydration from sloshing around. External fill makes replenishing your water supply quick and convenient. On the front you’ll find dual overlapping pockets and a stretch mesh overflow for efficient gear organization. Stretch mesh pockets on the harness to keep nutrition, your smart phone or other essentials within easy reach when you’re on the move. For safety, we’ve added a whistle on the harness and reflectivity on both front and back.
ANTIDOTE LUMBAR RESERVOIR FEATURES: 2L/70oz Antidote™ Lumbar Reservoir with Quick Link™ System, 1/4 turn - easy open/close cap, lightweight fillport, center baffling and low-profile design, patented Big Bite™ Valve, HydroGuard™ technology, PureFlow™ tube, easy-to-clean wide-mouth opening
KEY PACK FEATURES: LR reservoir compression, ultra-light materials, external fill, overlapping organizer pockets, front and back reflectivity, quick stash overflow storage, safety whistle
DESIGNED TO CARRY: Extra layers, ultra-light weather protection, energy bars, head lamp, trail maps, compass
- Hydration Capacity: 70 oz / 2 L
- Total Capacity: 330 cu in / 5.5L + 2L Reservoir
- Total Weight (Pack and Reservoir): 0.81 lbs / 0.37 kg
- Dimensions: 17.75 X 23.75 X 4 in / 45 X 60.5 X 10 cm
- Torso Length: 16 in / 42 cm
- Empty Reservoir Dimensions: Air Mesh
- Full Reservoir Dimensions: Fixed 25mm / 1" with cargo pockets
- Materials: Independent Suspension™ with dual pockets and Slider™ Sternum Strap
CamelBak® Got Your Bak™ Guarantee: If we build it, we'll Bak it™ with our lifetime guarantee.
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- Delivery and Returns
METHOD TIME COST SERVICE SPRINT Next working day FREE on orders over £100
(£6 for orders up to £100)
RUN 2-3 working days FREE on orders over £50
(£3 for orders up to £50)
CLICK & COLLECT (Glasgow) 1-2 Working days FREE SATURDAY DELIVERY 1 working day £12 Royal Mail
Orders received before 2pm (Monday-Friday) are processed on the same day - after 2pm orders will be processed on the next working day.
Click & Collect
Collect your order in person from the achilles heel Glasgow running shop. Orders placed before 2pm will be available for collection on the next working day; orders placed after 2pm will be available for collection in 2 working days. Orders placed over the weekend will be available for collection on the Tuesday.
As soon as your order is ready for collection we will email to let you know. When you collect your order please ensure you bring your order confirmation & identification.
We'll package and post your order to most locations across the world as quickly as we can - for full details of delivery charges for international orders check our delivery charges page.
Spend £200+ and get FREE EU delivery.
At achilles heel we aim to please, so if you're not completely satisfied with your order, we'll do whatever we can to make it better. Items can be returned for free for an exchange or a refund within 28 days of purchase - we offer free & easy tracked returns via Royal Mail, for full details please check our returns page.
It can be hard to get things right so we are giving 28 days from Christmas Day to return your gifts on all orders made during November and December. Our returns policy will revert to the standard 28-day period for items purchased after December 31st.