At ena athletics, we believe that every great runner is built on daily dedication—the steady rhythm, the focused training, the quiet persistence. The Proto Train embodies this philosophy as our foundational trainer, engineered for the runner who shows up day after day, ready to build lasting strength and resilience.
Train quietly. Build boldly.
The Proto Train is designed to support the full spectrum of your training efforts—from recovery jogs to tempo sessions, long aerobic runs to shorter drills. Its balanced combination of structure and comfort makes it the perfect all-round trainer for consistent mileage and progression. Leveraging the AXICORE™ technology from Proto Runner 1, Proto Train elevates everyday runs with an 8-layer carbon fiber plate tuned for a softer, more flexible feel—bringing advanced propulsion to your daily rhythm without the harshness of race-day footwear.
Whether you’re building your base, pushing tempo efforts, or recovering with easy miles, the Proto Train delivers dependable support and propulsion to keep your training on track. Proven in performance labs across Europe and the U.S., it harmonizes biomechanical efficiency with a sustainable design ethos.

Materials built for performance and longevity
Every element of the Proto Train is crafted with an eye on lasting performance and sustainability:
- Engineered Mesh Upper: Breathable yet supportive, made with recycled TPU and reinforced overlays. Enhanced padding around the heel and tongue offers all-day comfort during long runs and back-to-back training days.
- Silphion Dual-Density Midsole: Tuned specifically for training comfort and support, this bio-based foam blends a firmer medial side for stability with a softer lateral zone for plush cushioning—perfect for the varied demands of your workout.
- 8-Layer Carbon Fiber Plate: A unique flexible carbon plate bonded with a softer resin delivers smooth energy return that helps maintain your running flow, mile after mile.
- High-Grip Organic Rubber Outsole: Crafted from eco-conscious organic rubber, this outsole provides excellent traction and durability to withstand heavy training loads.
Built for the disciplined runner
The Proto Train fits true to size with a classic running shoe profile. A slightly roomier upper ensures your feet stay comfortable and supported during long training blocks, while the structured yet breathable mesh keeps you cool. At approximately 295g (EU 43) for men and 230g (EU 37) for women, it balances lightness with durability for a daily trainer that doesn’t quit.

Sustainability at heart
Proto Train proves that serious training and eco-conscious design go hand in hand. By incorporating 35% bio-based Silphion foam and recycled materials throughout the upper, alongside an outsole made from organic rubber, we commit to reducing environmental impact without compromising the performance you rely on.
At ena athletics, we celebrate the quiet discipline behind every strong runner. The Proto Train is more than a shoe—it’s a partner in your journey, helping you stay grounded, consistent, and ready for every step ahead.