OGSO STS — Review

The OGSO STS is the Chamonix boutique's 95 mm ultra-tour ski, sitting at the heart of their Ultra Tour Series and targeting long alpine outings, raids and steep-precision touring. Built with OGSO's NEOTERIC camber and a paulownia wood core wrapped in a full carbon jacket, it uses OGSO's Power Plate, Torsion Stabilizer and Tip Stabilizer for edge control. Verified specs at 178 cm are 117-95-129 mm with an 18.5 m radius and roughly 1550 g per single ski. Three lengths cover 170, 178 and 185 cm.

At 95 mm underfoot with NEOTERIC camber and a long, high tip, the STS is optimized for centered stance on skinning, energy-efficient uphill motion, and precise edge grip on steep or mixed descents. The ~1550 g weight at 178 cm makes it competitive with dedicated wide-range touring skis, and the 18.5 m radius at 178 cm keeps carves gentle enough for confident descents on variable snow. This is not a chargingpiste ski — the full carbon jacket produces snap and light swing weight rather than titanal damping. It rewards a light, technical style rather than fore-aft aggression.

Core: paulownia wood with a full carbon jacket — Power Plate, Torsion Stabilizer and Tip Stabilizer add edge control without adding significant weight. NEOTERIC camber profile with a long, high tip promotes centered balance on skinning transitions. Verified sidecut at 178 cm: 117-95-129 mm with 18.5 m radius. Available lengths 170, 178 and 185 cm. Weight ~1550 g per single ski at 178 cm — competitive for the segment.

Compared to the Dynafit Tigard 97 the STS is similarly weighted and target the same free-touring skier — the Dynafit is a mainstream reference in the segment while the OGSO is a boutique alternative with carbon-driven pop. Against the Dynafit Tigard 107 it is narrower and more piste-friendly for firm-snow descents. The OGSO's paulownia + carbon build sits alongside carbon-driven Kastle Tx-series tour skis in ethos, though the STS has a more traditional cambered feel.

Pros

• Verified light weight (~1550 g at 178 cm) competitive with dedicated touring 95s.
• NEOTERIC camber and long tip promote a centered stance on skinning transitions.
• Paulownia + full carbon jacket delivers snap and low swing weight for long tours.
• OGSO's Power Plate and stabilizers add edge control without adding significant mass.

Cons

• Not built for hardpack charging — light carbon build lacks titanal damping.
• Three lengths (170, 178, 185 cm) — no options for very small or very tall skiers.
• Boutique premium pricing versus mainstream touring 95s.
• Cambered profile limits deep-snow float versus wider tour skis.

Verdict: A boutique Chamonix-designed 95 mm ultra-tour ski for advanced tourers who prioritize efficient uphill travel and technical descents on variable snow. Best matched to a light, technical style rather than a hardpack charger.