For runners looking to boost their performance, Saucony’s Endorphin line has become one of the most popular options in the market. Two of its standout models the Endorphin Speed and the Endorphin Pro are often compared for their similarities and differences. Both shoes are designed for speed and efficiency, but they cater to slightly different types of runners and training goals. Understanding the distinctions between the Endorphin Speed vs Endorphin Pro can help athletes make the best choice for their needs, whether it’s daily tempo runs, race days, or long-distance training.
Overview of the Saucony Endorphin Line
The Saucony Endorphin collection was developed to give runners a faster and smoother running experience. The series uses innovative technology, including the PWRRUN PB midsole foam and SpeedRoll geometry, which propels the runner forward with every stride. Both the Endorphin Speed and Endorphin Pro feature this technology, but they are designed for different levels of intensity. The Endorphin Speed is known as a versatile training shoe, while the Endorphin Pro is a dedicated racing shoe built for peak performance.
Design and Construction Differences
Midsole and Cushioning
Both shoes share the PWRRUN PB midsole, which is a lightweight and highly responsive foam that delivers an energetic ride. However, the Endorphin Pro integrates a full-length carbon fiber plate, while the Endorphin Speed uses a nylon plate. This difference significantly impacts the feel and performance of the shoes.
The carbon plate in the Endorphin Pro offers a stiffer and more aggressive toe-off, ideal for maximizing efficiency during races. On the other hand, the nylon plate in the Endorphin Speed is more flexible, providing a slightly softer ride that works better for daily training or longer efforts when comfort matters just as much as speed.
Upper Design and Fit
In terms of the upper, both models prioritize breathability and a secure fit, but there are subtle distinctions. The Endorphin Pro’s upper is lighter and thinner, optimized for race-day performance and minimal weight. The Endorphin Speed, while still lightweight, has a slightly more padded heel and tongue for additional comfort during extended use. This makes the Speed more forgiving and better suited for a range of workouts beyond just racing.
Outsole and Durability
When comparing the Endorphin Speed vs Endorphin Pro in outsole design, both use durable rubber in high-wear areas to provide traction and longevity. However, the Endorphin Speed tends to offer greater durability because it is intended for higher mileage use. The Endorphin Pro, being a race-oriented shoe, has slightly less outsole coverage to keep the weight as low as possible. Runners who prioritize long-term durability might lean toward the Speed for its extended lifespan.
Performance and Feel
Ride and Responsiveness
The Endorphin Pro delivers a more rigid and propulsive ride thanks to its carbon plate. It’s designed to minimize energy loss and optimize running economy during races, particularly marathons and half marathons. The SpeedRoll geometry enhances this effect by creating a rolling motion that encourages a forward lean and faster cadence.
Meanwhile, the Endorphin Speed offers a smoother, slightly more forgiving feel due to the nylon plate. It still feels fast but allows for more natural movement. This makes it ideal for tempo runs, interval sessions, or even long easy runs where comfort is essential. Many runners describe the Speed as having a bouncier sensation compared to the more rigid Pro.
Weight Comparison
Weight plays a big role in performance shoes. The Endorphin Pro is slightly lighter, typically around 7.5 ounces (for men’s size 9), while the Endorphin Speed weighs about 7.9 ounces. The weight difference may seem minor, but during long races, even a fraction of an ounce can make a difference in perceived effort and overall efficiency.
Comfort and Stability
Comfort and stability are key differentiators in the Endorphin Speed vs Endorphin Pro comparison. The Endorphin Speed offers a touch more cushioning and flexibility, which can make it feel more stable for daily use. The slightly softer plate material adapts better to uneven surfaces, reducing strain on the feet and calves during long training sessions.
The Endorphin Pro, in contrast, prioritizes a firm and efficient feel. Some runners may find it less comfortable for easy runs or recovery days due to its rigidity. However, for short, fast runs or races, the firm structure translates into better propulsion and performance.
Intended Use and Target Runners
Who Should Choose the Endorphin Speed
The Endorphin Speed is designed for runners who want a high-performance training shoe that can handle various workouts. It’s ideal for
- Tempo and interval sessions
- Long runs and marathon training
- Runners seeking a balance of speed and comfort
- Those who prefer a slightly softer, more flexible feel
Its versatility makes it a favorite among runners who want one shoe that can do it all. The combination of responsiveness and comfort means it can handle everything from easy miles to faster workouts without sacrificing performance.
Who Should Choose the Endorphin Pro
The Endorphin Pro, on the other hand, is a specialized racing shoe for serious runners looking to maximize efficiency and speed on race day. It’s perfect for
- Marathons, half-marathons, and competitive 10Ks
- Runners with efficient form who benefit from a carbon plate
- Those seeking a lightweight, aggressive feel for racing
While it can be used for training, many runners reserve the Pro for race days or key speed workouts to extend its lifespan and preserve its performance characteristics.
Price and Value Considerations
When discussing Endorphin Speed vs Endorphin Pro, price often becomes part of the conversation. The Pro is generally more expensive due to the inclusion of a carbon fiber plate and the lightweight design optimized for competition. The Speed, however, offers excellent value because it delivers similar performance with greater versatility and durability. Many runners find the Speed a more cost-effective choice since it can serve both as a training and race shoe.
Updates Across Versions
Both the Endorphin Speed and Endorphin Pro have undergone updates over the years, with each new version refining comfort, stability, and durability. The latest iterations continue to focus on improving the upper fit and refining the SpeedRoll geometry for a smoother transition. Despite these updates, the fundamental difference remains nylon plate for the Speed, carbon plate for the Pro.
How to Decide Between the Two
Choosing between the Endorphin Speed and the Endorphin Pro ultimately depends on your goals and running style. If you want a shoe that can handle everyday training but still feels fast, the Endorphin Speed is the better choice. It’s more forgiving, more durable, and suitable for a variety of paces. If you’re focused on race-day performance and want every possible advantage, the Endorphin Pro offers the edge you need with its carbon plate and ultra-lightweight design.
When comparing the Endorphin Speed vs Endorphin Pro, it’s clear that both shoes are exceptional in their categories. The Speed offers more versatility and comfort for daily use, while the Pro delivers top-tier efficiency for competitive runners chasing personal bests. Both models share Saucony’s innovative design philosophy, combining energy return, lightweight construction, and smooth transitions. Whether you’re training for your first marathon or setting out to win your next race, choosing the right pair between the Endorphin Speed and Endorphin Pro can make all the difference in performance and experience.