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 The 8.4mm Evolution Duetto 80m 2xDry is officially retired.You've found a page of history! The 8.4mm Evolution Duetto 80m 2xDry is no longer produced by Sterling and it is not available to buy from major online retailers. You can still check out all the specs and claim your ownership.

Sterling Evolution Duetto Dry 80m
  • Sterling Evolution Duetto Dry 80m
  • Sterling Evolution Duetto Dry 80m

8.4mm Evolution Duetto 80m 2xDry



no ratings


The Duetto is 8.4mm and built to be lightweight with a great hand. The smooth, abrasion resistant sheath glides over the snow and ice and through gear effortlessly. This rope is also available in shorter lengths for alpine touring and glacier travel

Evolution series are the original ropes that Sterling offered and are engineered for an ideal balance of diameter to weight.

Retail price

US$ 255.95

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Weight 45.0 g/m
7.936 lbs / 3600 g
Diameter (millimeters) 8.4 mm
Length (meters) 80 m
Rope Type Half (Double)­
UIAA Falls (Single / Half / Twin) ­0  / 6  / 0
Dynamic Elongation (Single / Half / Twin) 0.0 % / 31.6 % / 0.0 %
Static Elongation (Single / Half / Twin) 0.0 % / 11.0 % / 0.0 %
Impact Force (Single / Half / Twin) 0.00 kN / 6.50 kN / 0.00 kN
Dry Treatment Sheath & Core­
Sheath Proportion (%) ­
Sheath Slippage (mm) ­
Type of Middle Mark None
Rope End Marker None
Certification CE
Making a Backpack Coil

No reviews yet.

Blister Gear Review no rating given just a review

On the whole, the Sterling Evolution Duetto ropes have performed beautifully; they’ve lived up to their reputation, and I would have to really dig deep to come up with more gripes than the two minor ones listed above. Half ropes are wonderful in general, and these are better than most. Though it seems like a minor point, I thought that it spoke to the rope’s handling that it was so easy to slide clove hitches when adjusting a tie-in, as well as untie knots that had tightened during a fall.

For anyone considering making the jump from singles to halves, these are a solid option—even if you never thought you’d consider switching rope brands again.