Aarn Effortless Rhythm 65-70 Litre Hiking Pack


Size: Long Backlength Medium Hipbelt
Sale price$589.00


Effortless Rhythm is a dual-compartment Aarn backpack, designed to take your gear into the world's most remote places comfortably.  Perfect for multi-day backcountry trips, long-distance thru-hiking trails, or just extra space for extra comfort.

With a separate compartment at the bottom, it makes it easy to store and find gear. The lid is removable and can also be converted into a bum bag! This pack is often used for long-distance trips when you like to take a bigger load. 

Fully featured, it allows you to carry a wide variety of adventure tools for diverse conditions and multiple activities. 

  • Adjustable back-length
  • On-Adjust buckle allows back-length shortening with the pack on to allow a precision fit to a wide range of body sizes
  • Breathable stretch 3D mesh that auto-moulds to the slope of your shoulders
  • Twin stabiliser take-off options with 5cm height difference for a precision fit
  • Flow-Thru stabilisers prevent shoulder straps distortion when top stabilisers are tightened
  • U Flow by interlinked bottom tensioners
  • Pelvic-Form Hip Belt auto-moulds over the top of your hips to your precise hip shape. Each size adjustable by 10cm

Dimensions: W 40cm x D 25cm x H 75cm (M) / 85cm (L)

Litres (Main Body): 66L (M); 72L (L)

Max Load: 22kg

Pack Weight: 1446g (M); 1506g (L) + liner

Size Guide

Back Length

Medium: 43cm - 53cm

Long: 53cm - 57cm


Small: Between 64 cm - 80 cm 

Medium: Between 81 cm - 90 cm

Large: 91 cm - 100 cm,

Extra Large: 101 cm - 120 cm

If you are on the cusp, go to the bigger size.

Contact us within 30 days of receiving your goods to request a refund or exchange if products are eligible (see: Return Policy).

All packaging or products must be in their original, re-sellable condition.

Outlet sales are final and can only be returned for exchange. Items found faulty or under warranty will be replaced or refunded.

Some special condition products are labelled as No Refund & Exchange Products. Sale of these items are final and are not eligible for neither refunds nor exchanges.

For safety reasons, K2 cannot accept returns on climbing equipment, socks, underwear and some other products unless faulty.

Please check out our refund policy if you need more information.

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