R.A.D® is a brand that knows what it wants to be, and the SYNTH makes that clear from the first wear. Precise, responsive, and built for runners who want a daily trainer that earns its place in the rotation — watch the full rundown below.
Upper
Engineered mesh with strategic venting keeps airflow moving without sacrificing structure. Reinforced in the right places to hold the foot in position without feeling stiff or restrictive, it's an upper that does its job quietly. A padded collar and gusseted tongue round out the fit — everything stays where it should, and getting moving is effortless.
Midsole
The SwellFoam™ midsole is the story here. A bio-based EVA and TPEE compound that splits its job intelligently — a firmer heel zone absorbs impact on landing, while a softer forefoot section drives push-off. A slightly rocker-inspired geometry ties it together, keeping transitions smooth and natural without asking anything extra of the runner. At 232g for a US M9, it carries itself well for a shoe with this much going on underfoot.
Outsole
A herringbone rubber outsole handles grip and protection across daily surfaces — controlled and confident whether you're putting in easy kilometres or stretching into longer sessions.
Specs
Upper: Engineered mesh with strategic venting
Midsole: SwellFoam™ (TPEE + 40% Bio EVA)
Outsole: Herringbone rubber
Heel: 38mm | Drop: 6mm
Weight: 232g (US M9)
Extras: Padded collar, gusseted tongue, reflective accents
