Unparallel Sirius

Unparallel

An aggressive downturned lace shoe built for demanding sport and overhanging projects, the Sirius combines an offset lacing system with 3.5mm RS rubber for precision and sensitivity. High asymmetry and a medium midsole deliver powerful edging and toe hooking on steep terrain.

Best For

Best for sport climbing on slab, vertical and overhang terrain. Aimed at intermediate to advanced climbers.

Strengths & Trade-offs

Strengths

  • Precise lace-up fit tuning
  • Shape adapts to the angles you see on most sport climbs
  • Customizable lace tension for long route comfort
  • Rubber works on granite, limestone, and plastic equally
  • New rubber gives this shoe a second life

Trade-offs

  • Less adaptive than a leather upper over time

Sizing & Fit

True to size for standard feet. Size for a snug but comfortable fit.

Fit profile: narrow width, standard forefoot volume, medium heel, suits egyptian toe shapes.

No stretch expected; minimal break-in.

Stiffness

Measured stiffness: 0.47 on our 0-1 scale (0 = softest). Among aggressive shoes it sits between the La Sportiva Solution (0.43, softer) and the Scarpa Boostic (0.53, stiffer).

Specifications

BrandUnparallel
ModelSirius
ClosureLace
DownturnAggressive
AsymmetryStrong
RubberUP RS
Rubber Thickness3.5mm
Weight (pair)434g
VeganYes
KidsNo

Prices

RetailerPrice
bergfreunde.de87.48 EUR
bananafingers.co.uk113.39 EUR

Cheapest current offer: 87.48 EUR at bergfreunde.de, 40% below the 145.00 EUR list price. 2 shops currently stock it (87.48 to 113.39 EUR).

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