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Adidas Adios Pro 2 vs Saucony Endorphin Pro

In recent years, the running shoe market has been flooded with cutting-edge models designed to enhance a runner’s efficiency and propel them towards new personal bests. Two such contenders in the realm of high-performance racing shoes are the Adidas Adios Pro 2 and the Saucony Endorphin Pro. In this comprehensive comparison, we will delve into the features, technologies, and real-world performance of these two racing titans to help you make an informed decision about which shoe might be the best fit for your racing needs.

Design and Aesthetics

The first impression of a running shoe often comes from its design and aesthetics. Both the Adidas Adios Pro 2 and the Saucony Endorphin Pro showcase sleek, modern designs that exude speed and performance.

The Adidas Adios Pro 2 features a lightweight Celermesh upper with subtle branding and a distinctive midsole design. The colorways are bold and attention-grabbing, reflecting the shoe’s racing pedigree. The prominent Boost midsole, known for its energy-returning properties, is a key visual element that sets the Adios Pro 2 apart.

On the other hand, the Saucony Endorphin Pro boasts a FORMFIT upper that wraps snugly around the foot, offering a secure fit. The shoe’s appearance is streamlined, with minimalistic branding and a striking, elongated heel design. Saucony’s colorways are more understated compared to Adidas, emphasizing a professional and serious racing aesthetic.

Both shoes incorporate the latest advancements in materials and construction techniques to reduce weight and enhance performance. The choice between the two in terms of design may ultimately come down to personal preference, with Adidas favoring a more flashy and bold style, while Saucony opts for a sleek and refined look.

Weight and Build

In the realm of racing shoes, weight is a critical factor. A lighter shoe can contribute to improved running economy and a faster overall pace. The Adidas Adios Pro 2 and the Saucony Endorphin Pro are both engineered with the goal of minimizing weight while maintaining durability and support.

The Adidas Adios Pro 2 weighs in at around 7.5 ounces (men’s size 9), making it one of the lighter options in the racing shoe category. Adidas achieves this lightweight profile through the use of advanced materials in the upper and a responsive yet lightweight midsole construction.

The Saucony Endorphin Pro is similarly lightweight, tipping the scales at approximately 7.5 ounces (men’s size 9). Saucony’s emphasis on the FORMFIT upper contributes to the shoe’s overall lightness, providing a snug fit without unnecessary bulk. The combination of a lightweight design and a responsive midsole positions the Endorphin Pro as a strong competitor in the weight category.

Both shoes utilize carbon fiber plates within the midsole to enhance propulsion and energy return, a common feature in modern racing shoes. The build quality of both models is high, with an emphasis on durability despite the lightweight construction. Runners seeking a feather-light racing experience will find both the Adidas Adios Pro 2 and the Saucony Endorphin Pro to be compelling options.

Midsole Technologies

The midsole is the heart of any running shoe, and in racing models like the Adidas Adios Pro 2 and the Saucony Endorphin Pro, the midsole plays a crucial role in delivering speed and responsiveness. Let’s explore the midsole technologies that define these two contenders.

Adidas Adios Pro 2

The Adidas Adios Pro 2 features the brand’s signature Boost technology in the midsole. Boost is a proprietary cushioning material that combines thermoplastic polyurethane (TPU) pellets with air to create a responsive and energy-returning foam. The Boost midsole is designed to provide a balance of cushioning and energy efficiency, making it an ideal choice for racing.

In addition to Boost, the Adios Pro 2 incorporates a Carbitex carbon fiber plate. This plate runs through the midsole and is designed to enhance propulsion and increase running efficiency. The combination of Boost cushioning and the carbon fiber plate creates a dynamic and responsive ride, allowing runners to maintain speed over long distances.

Saucony Endorphin Pro

Saucony employs its innovative PWRRUN PB foam in the midsole of the Endorphin Pro. This foam is designed to be lightweight, responsive, and offer excellent energy return. Like Boost, PWRRUN PB aims to provide a cushioned yet propulsive feel to support runners during high-speed efforts.

The Endorphin Pro also features a full-length S-shaped carbon fiber plate, known as the SPEEDROLL technology. This design is intended to promote a rolling motion from heel to toe, facilitating a smooth and efficient stride. The combination of PWRRUN PB foam and the carbon fiber plate delivers a lively and energetic feel that can contribute to faster race times.

While both the Adidas Adios Pro 2 and the Saucony Endorphin Pro utilize carbon fiber plates to enhance performance, the choice between Boost and PWRRUN PB ultimately comes down to personal preference. Some runners may prefer the cushioning properties of Boost, while others may favor the lightweight and responsive nature of PWRRUN PB.

Upper Construction and Fit

The upper of a racing shoe plays a crucial role in providing a secure and comfortable fit, especially during high-speed efforts. Both Adidas and Saucony have incorporated advanced materials and design elements to optimize the fit and support of the Adios Pro 2 and the Endorphin Pro.

Adidas Adios Pro 2

The Adios Pro 2 features a Celermesh upper, which is a lightweight and breathable material designed to provide a secure fit without sacrificing ventilation. The upper incorporates minimal seams and overlays to reduce weight and potential points of irritation. The fit is enhanced by a traditional lacing system and a padded collar, offering a secure yet comfortable feel.

The heel counter of the Adios Pro 2 is moderately rigid, providing stability and preventing excessive movement during the running gait. The overall design aims to strike a balance between a snug fit and freedom of movement, catering to the needs of elite and recreational runners alike.

Saucony Endorphin Pro

Saucony’s Endorphin Pro utilizes a FORMFIT upper, which is engineered to conform to the shape of the foot for a personalized and secure fit. The material is lightweight, breathable, and features minimal overlays to reduce unnecessary weight. The FORMFIT upper is complemented by a traditional lacing system that allows runners to customize the tightness of the fit.

One notable feature of the Endorphin Pro is its elongated heel design, which provides additional support and stability. The heel counter is designed to cradle the foot and prevent excessive movement, contributing to a more efficient running gait.

While both the Adidas Adios Pro 2 and the Saucony Endorphin Pro offer secure and comfortable fits, individual preferences may influence the choice between the Celermesh upper of the Adios Pro 2 and the FORMFIT upper of the Endorphin Pro. Runners who prioritize a snug and conforming fit may find the Endorphin Pro to be a particularly appealing option.

Outsole and Traction

The outsole of a racing shoe is responsible for providing traction, durability, and protection against the wear and tear of road surfaces. Let’s examine the outsole designs of the Adidas Adios Pro 2 and the Saucony Endorphin Pro to see how they address these crucial aspects.

Adidas Adios Pro 2

The Adios Pro 2 features a Continental rubber outsole, a material known for its durability and grip on various surfaces. The outsole design incorporates a mix of exposed Boost midsole material and rubber pods strategically placed in high-wear areas. This configuration aims to provide a balance between traction and weight savings.

The use of Continental rubber enhances the overall durability of the Adios Pro 2, making it well-suited for high-mileage training and racing on roads. The traction is reliable, offering confidence to runners during various weather conditions.

Saucony Endorphin Pro

Saucony takes a slightly different approach with the Endorphin Pro’s outsole design. The majority of the outsole is exposed foam, with only a few sections featuring rubber pods. This design contributes to the shoe’s overall lightness while still providing sufficient traction on road surfaces.

The durability of the Endorphin Pro’s outsole may be a concern for some runners, especially those who plan to use the shoe for extensive training miles in addition to racing. However, the targeted placement of rubber pods in high-wear areas helps mitigate wear and tear, ensuring a reasonable lifespan for the shoe.

Ultimately, the choice between the Adios Pro 2 and the Endorphin Pro in terms of outsole design may depend on the runner’s priorities. If durability and all-weather traction are top considerations, the Adios Pro 2 with its Continental rubber outsole may be the preferred option. On the other hand, runners seeking a lightweight racing experience may appreciate the Endorphin Pro’s strategically placed rubber pods.

Performance and Real-World Testing

While the technical specifications and features of a running shoe are essential, the true measure of a racing shoe’s worth lies in its real-world performance. Both the Adidas Adios Pro 2 and the Saucony Endorphin Pro have been put through their paces by elite athletes and recreational runners alike. Let’s explore the performance aspects of these two racing shoes.

Adidas Adios Pro 2 Performance

The Adidas Adios Pro 2 has received acclaim for its performance in various racing conditions. The combination of Boost cushioning and the Carbitex carbon fiber plate provides a responsive and energy-efficient ride, allowing runners to maintain high speeds over extended distances.

One notable aspect of the Adios Pro 2’s performance is its versatility. While designed for marathon racing, the shoe performs admirably across a range of distances, making it suitable for 5Ks, 10Ks, and half marathons. The secure fit of the Celermesh upper, coupled with the stability provided by the heel counter, contributes to a confident and comfortable running experience.

Saucony Endorphin Pro Performance

The Saucony Endorphin Pro has also garnered praise for its performance, particularly in the realm of marathon racing. The combination of the PWRRUN PB foam and the S-shaped carbon fiber plate delivers a propulsive and efficient ride. The SPEEDROLL technology facilitates a smooth and natural transition from heel to toe, promoting a fast and fluid running gait.

Runners who have tested the Endorphin Pro appreciate its lightweight feel and the snug fit provided by the FORMFIT upper. The elongated heel design contributes to stability and helps prevent excess movement, enhancing the overall efficiency of the runner’s stride.

Comparative Analysis

When comparing the Adidas Adios Pro 2 and the Saucony Endorphin Pro, several key factors come into play:

  1. Cushioning and Energy Return:
    • Adidas Adios Pro 2: Boost cushioning technology offers a balanced mix of cushioning and energy return.
    • Saucony Endorphin Pro: PWRRUN PB foam aims for a lightweight and responsive feel, complemented by a full-length carbon fiber plate.
  2. Upper Fit and Comfort:
    • Adidas Adios Pro 2: Celermesh upper provides a secure fit with a traditional lacing system.
    • Saucony Endorphin Pro: FORMFIT upper conforms to the foot’s shape, featuring an elongated heel design for added stability.
  3. Weight:
    • Both shoes weigh approximately 7.5 ounces (men’s size 9), placing them among the lighter options in the racing shoe category.
  4. Outsole and Traction:
    • Adidas Adios Pro 2: Continental rubber outsole offers durability and reliable traction.
    • Saucony Endorphin Pro: Strategically placed rubber pods on an exposed foam outsole aim for a lightweight design with adequate traction.
  5. Versatility:
    • Both shoes are suitable for various race distances, with the Adios Pro 2 being slightly more versatile across different race lengths.
  6. Price:
    • The pricing of both shoes is in the premium range, reflecting the advanced technologies and materials used in their construction.


In the race for the ultimate racing shoe, both the Adidas Adios Pro 2 and the Saucony Endorphin Pro emerge as formidable contenders. The decision between these two models ultimately depends on individual preferences, racing goals, and specific performance requirements.

The Adidas Adios Pro 2 impresses with its Boost cushioning technology, providing a well-balanced mix of comfort and energy return. The addition of a Carbitex carbon fiber plate enhances propulsion, making it a versatile option for various race distances. The Continental rubber outsole adds durability and traction, making it suitable for different weather conditions.

On the other hand, the Saucony Endorphin Pro showcases the innovative PWRRUN PB foam and an S-shaped carbon fiber plate for a lightweight and responsive ride. The FORMFIT upper conforms to the foot’s shape, and the elongated heel design contributes to stability. While the outsole features less rubber coverage, strategically placed pods aim to provide adequate traction.

Ultimately, runners seeking a slightly more versatile option with a well-established cushioning technology may lean towards the Adidas Adios Pro 2. Those prioritizing a lightweight and responsive ride, along with a snug and conforming upper, may find the Saucony Endorphin Pro to be the ideal choice. Both shoes represent the pinnacle of racing shoe technology, catering to the needs of elite athletes and ambitious recreational runners alike.

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