The Hanwag Sirius II GTX is a firm and versatile alpine boot designed for demanding touring. The clamp loop allows for different tight lacing of the front and upper part of the bootleg. The hand-raised, circumferential scree protection safeguards the upper material against wear and stabilizes the boot shape.

The ultra-thin and lightweight GORE-TEX membrane, made of stretched, microporous PTFE (polytetrafluoroethylene), is especially suitable for warmer climates. The lining is waterproof and highly breathable.

With a crampon-resistant sole, this boot is compatible with fully automatic crampons. It falls into category D, making it suitable for high alpine tours, selective glacier, ice, and firn tours in pathless, extreme terrain, or for ice climbing. The stiffness of the sole, the blast (how far the sole is rounded off for good rolling), and the shaft construction determine the model's positioning within the categories A-B-C-D, providing an idea of the shoe's stiffness.

Category D indicates a very firm and fully crampon-resistant boot (step-in/automatic crampons). Category C is firm and conditionally crampon resistant (strap-on/semi-automatic crampons). Category B offers a firm hold with a solid but flexing sole for trekking and hiking, while category A features a soft, very well flexing structure.

Weight per pair: 1940 g. Size information: normal. Fit: normal cut.

Details include cold insulation according to DIN EN 344-1 up to -15°C, a soft upper made of leather, a TPU tip, a full-length cushioning wedge made of PU, and a PU heel for additional cushioning.

Construction: high cut. Range of use: mountaineering.

Material: Upper type: leather (3 - 3.2mm thick mountain cowhide). Outsole type: Vibram (Vibram Alpin Light). Membrane type: GORE-TEX (GORE-TEX Duratherm).

Special features: hook fixation. Crampon suitability: fully crampon proof. Closure system: lacing.