Tenaya Mastia

Tenaya

Aggressively curved slipper-style shoe from Tenaya's Aerial Plus line, designed to power through steep boulder problems and overhanging sport routes. Down-angled, low-profile toe box drives into shallow pockets and thin cracks. Split sole with Vibram XS Grip 3.5mm and seven different rubber formulations deliver targeted grip where it matters most. Unlined construction keeps weight down and sensitivity high.

Best For

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

Strengths & Trade-offs

Strengths

• Low-profile toe box attacks shallow pockets and thin edges
• Split sole with seven rubber compounds for position-specific grip
• Unlined construction maximises sensitivity
• Velcro closure makes it quick on and off between burns
• Perforated tongue provides excellent breathability

Trade-offs

• Aggressive shape is uncomfortable for longer sessions
• Split sole offers less support than full-length midsole designs
• Hard to wear for more than a pitch or two

Sizing & Fit

True to size with minimal stretching expected.

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

No stretch expected; minimal break-in.

Stiffness

Measured stiffness: 0.41 on our 0-1 scale (0 = softest). Among aggressive shoes it sits between the La Sportiva Skwama (0.33, softer) and the La Sportiva Mandala (0.47, stiffer).

Specifications

Prices

Cheapest current offer: 142.90 EUR at hardloop.de, 21% below the 179.95 EUR list price. 11 shops currently stock it (142.90 to 179.90 EUR).

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