The Adidas Outdoor Terrex solo is a softer approach shoe, providing great sensitivity and traction for climbing, thanks to its Stealth rubber forefoot and toe cap. When trails are hard and dry and the base of the climbs lie above slabs, this shoe excels. The flat and low profile provides stability but the midsole composition and thickness can allow some pressure from small stones and pointy obstacles, especially under heavier trad climbing loads.
Support/Stability This shoe’s stiff heel counter, low 10mm heel drop, straight last and wide heel/midfoot platform provide excellent lateral stability. The toe box is wide with a shorter vertical profile, and with proper lacing tension, the forefoot can splay out but remain planted securely. These attributes allow the Adidas Outdoor Terrex Solo to provide confident travel across the steepest slabs. The Adidas Outdoor Terrex Solo’s internal profile is rather flat, providing little built in structure, so this shoe isn’t the best choice for those with arches that need additional support.
Protection The soft and sensitive nature of the “adiPrene” forefoot midsole on the Adidas Outdoor Terrex Solo can allow some pressure to be felt when walking across small stones or jagged boulder edges, especially while shouldering heavy packs. The one-piece outsole and toe cap keep the front of the shoe and toes protected against abrasion and impacts. Stitched and welded overlays protect the mesh upper from abrasion in areas compromised during foot jamming but impact protection is minimal.
Comfort The Adidas Outdoor Terrex Solo is flexible and comfortable right away, requiring no break in period. The wide mid and forefoot allow swollen feet plenty of room to spread out and the straight last provides a relaxed fit. This shoe fits those with a wide but vertically thin forefoot the best. The full mesh upper brings welcome airflow to hot feet but limits the use to summer and shoulder seasons in milder climates.
Quality and Construction The Adidas Terrex Solo’s quality and construction is average for high end athletic shoes. Both single and double stitching is used and seams are straight and evenly spaced. In some cases the stitching pattern is off center on the item being affixed to the upper. Bonding of the midsole, outsole and upper overlays are clean with no excess glue visible. Fully functional, but nothing extraordinary.
Performance Climbing and scrambling performance is where the Adidas Outdoor Terrex Solo shines. Sister company FiveTen’s Stealth rubber in the forefoot with a large, flat climbing zone under much of the toe area, provides incredible traction while scaling slabs and boulder hopping. The shallow and closely spaced triangle shaped lugs on the rest of the
“Traxion” outsole provide equally excellent traction on hard packed and dusty trails but falls short in even slightly muddy conditions. The rounded toe profile challenges pocket poking, but the thin vertical profile helps in parallel sided cracks.
Seiji Ishii works as a trainer to professional supercross/motocross riders, adventure riding test editor at Dirt Rider Magazine and an AMGA certified rock climbing guide/instructor for White Star Mountain Guides/Austin Rock Gym. He lives in Wimberley, TX with wife Shay, 3 year old daughter Sequoia, 3 dogs and a cat. His personal time is spent rock climbing, any form of dirt biking, cycling, and training for the next mountaineering adventure.