The Refined Saucony Endorphin Speed 6 Blends a Bouncy Vibe with Comfort and Versatility
The Saucony Endorphin Speed 6 is a semi-firm, bouncy and versatile daily training shoe.
Which is the best pair of super shoes for fall racing? We’ll help you figure it out.
You’ve probably been logging miles and training diligently since mid-summer, have enjoyed a heightened level of fitness and are getting excited for your big fall race.
Good for you. That means there’s one thing you need to figure out before race day.
Which carbon-plated super shoes are you going to be racing in?
The marathon super shoe market has exploded in recent years and you can’t expect to lace up any model and expect a PR. Every model on the market now packs some combination of supercritical foam and a carbon plate, but that’s where the similarities end. One shoe rolls you through your stride like a rocker; another stays quiet until you pick up the pace, then wakes up entirely. Some fit narrow and locked-in, others go wide and anatomical. Some reward a fast, steady rhythm, others are built for runners who like to surge.
That variation is a big challenge—and a big opportunity. The “best” marathon shoe isn’t a single shoe at all; it’s the one that matches your foot shape, your gait, and the way you actually run a race. So rather than crown one winner, this piece breaks down six of the top road racers so you can figure which ride is the right one for you.
Price: $250 $204 (women / men)
Approximate Weights: 5.8 oz. (women’s, size 8.0), 7.0 oz. (men’s size 9.0)
Heel-Toe Offset: 6mm; 39mm (heel), 33mm (forefoot)
A go-to for runners holding a fast, steady pace over the full 26.2 miles, this shoe combines energetic foam with adidas’ EnergyRods for propulsion. It’s built around a dual-layer Lightstrike Pro foam midsole, Adidas’ lightest and most responsive cushioning to date, with a full-length carbon EnergyRods system running between the layers to mirror the foot’s metatarsal bones. Runners generally rave about the propulsive, springy feel underfoot and note that the geometry helps maintain pace deep into a race without breaking down form late.
The dual-layer Lightstrike Pro foam combined with the anatomically shaped EnergyRods gives this shoe a smooth, seamless roll from heel to toe that feels less like a single “pop” and more like a continuous forward push through the whole gait cycle.
Love it: The smooth, continuous rocker and dual-foam layering make it easy to hold a fast, steady pace deep into a marathon without the ride ever feeling harsh.
Might not love it: Runners who want an aggressive, snappy “pop” underfoot may find the ride feels more like a steady push than an explosive one.
Price: $240 (women / men)
Approximate Weights: 6.7 oz. (women’s size 8.0), 7.7 oz. (men’s size 9.0)
Heel-Toe Offset: 4mm; 40mm (heel), 36mm (forefoot)
Altra’s flagship road racer pairs a wider, foot-shaped toe box with true super-shoe performance, aimed at runners who want anatomical comfort without giving up speed. The midsole uses a new two-piece, full PEBA compound called FAST RCE, paired with a patent-pending split-toe carbon plate that separates at the big toe to preserve natural toe splay while still stiffening the forefoot for propulsion. Runners appreciate that it delivers a dense, supportive, and protective ride that stays comfortable over long efforts, with many pointing to the roomier fit as a refreshing departure from the snug, narrow feel of most other carbon racers.
The split-toe carbon plate lets the big toe flex somewhat independently from the rest of the forefoot, so the ride feels firmer and more grounded at initial toe-off before releasing into a springier finish, rather than delivering one uniform snap.
Love it: The wider, foot-shaped toe box gives runners with wider feet a genuine super-shoe option without the cramped, locked-in fit most carbon racers force on them.
Might not love it: The shoe runs heavier than most rivals in its class, so weight-conscious racers chasing every last gram may be disappointed.
Price: $270 (women’s / men’s)
Approximate Weights: 4.9 oz. (women’s size 8.0), 5.6 oz. (men’s size 9.0)
Heel-Toe Offset: 5mm; 40mm (heel), 35mm (forefoot)
A race-winning favorite this year, the Edge Tokyo pairs bouncy FF LEAP top foam with firmer FF TURBO+ underneath for a lighter, more responsive ride than the Paris version. The dual-density midsole sandwiches a carbon plate positioned lower in the stack than ASICS’ Sky model, and the shoe is finished with a stripped-down, minimalist racing upper to keep weight down. Runners favor it for its versatility across distances from 5K to marathon, and many cadence-focused runners in particular say the softer top layer and rockered geometry make for an especially smooth, efficient toe-off.
The softer FF LEAP layer sitting on top of the firmer FF TURBO+ base creates a ride that feels cushioned and forgiving on landing but firms up instantly through the transition, giving a distinctly two-stage feel compared to racers with a single foam type.
Love it: The soft top foam over a firmer base gives cadence-driven runners a light, snappy toe-off that feels quicker and more efficient with every stride.
Might not love it: The narrow, minimalist upper can create pressure across the arch and doesn’t offer much room to customize the lockdown fit.
Price: $275 (women / men)
Approximate Weights: 6.2 oz. (women’s size 8.0), 7.2 oz. (men’s size 9.0)
Heel-Toe Offset: 7mm; 38mm (heel), 31mm (forefoot)
Built for speed and cushioning, the Cielo X1 3.0 posts lab-tested shock absorption and energy return numbers that stand out even among other super shoes, all while staying feather-light at under 7 oz. It’s built with a massive stack of supercritical foam and a bold rocker profile, paired with a breathable upper that keeps the shoe cool and light over long distances. Runners consistently point to how effortlessly fast the shoe feels underfoot, with the combination of a huge, protective stack and strong energy return helping legs stay fresher deep into a marathon.
The unusually tall, curved platform makes the ride feel like it’s rolling you forward on a rocker rather than requiring you to actively push off, so pace feels like it sustains itself with less perceived effort than the stack height would suggest.
Love it: The tall, heavily rockered platform makes fast paces feel almost automatic, rolling runners forward with very little extra effort.
Might not love it: The narrow heel base and tapered toe box can feel unstable or wobbly, especially for heel strikers or runners with wider feet.
Price: $270 (women / men)
Approximate Weights: 5.3 oz. (women’s, general size), 6.7 oz. (men’s size 9.0)
Heel-Toe Offset: 6mm; 35mm (heel), 29mm (forefoot)
Still the benchmark super shoe for many elite and sub-elite marathoners, the Vaporfly 4 pairs ZoomX foam with a full-length carbon Flyplate for a springy, “magic” feel that’s tough to match. Nike lowered the stack height and drop compared to past versions while reshaping the Flyplate to a steeper angle, making this the lightest Vaporfly yet at well under 7 oz. Runners often describe the ride as coming alive at faster paces, with the combination of ultra-light weight and a snappy plate helping them hold quicker splits later into a race than they expect to.
The steeper-angled Flyplate paired with a lower stack height gives this version a firmer, more direct, almost flat-feeling ride at easy paces that only “wakes up” and reveals its signature bounce once you pick up speed.
Love it: Its ultralight build and reshaped plate let it “wake up” and deliver that signature bouncy, energetic feeling once a runner picks up the pace.
Might not love it: At easier paces the ride can feel surprisingly firm and flat, so it may not impress runners expecting the plush cushioning of past Vaporfly versions.
Price: $275 (women / men)
Approximate Weights: 5.9 oz. (women’s size 8.0), 6.7 oz. (men’s size 9.5)
Heel-Toe Offset: 8mm; 40mm (heel), 32mm (forefoot)
New Balance’s flagship marathon racer blends race-day speed with a more forgiving, trainer-like ride, aimed at runners who want a shoe that holds up comfortably across the full distance. The midsole swaps in a new lightweight Infinion foam in place of the previous PEBA compound, working with a redesigned, stiffer carbon plate and a translucent mesh upper for a secure, minimal-weight fit. Runners tend to highlight the smooth, cushioned feel that stays comfortable no matter where they land on the platform, making it a popular pick for high-mileage marathon training as well as race day itself.
The Infinion foam rides noticeably softer and calmer underfoot than most carbon racers, so the sensation is less an aggressive snap and more a steady, cushioned glide that stays consistent late into a race.
Love it: The calmer, more cushioned ride stays comfortable and predictable at virtually any pace, making it easy to trust deep into a long race.
Might not love it: Runners looking for a dramatic, aggressive rocker or an explosive front-of-shoe pop may find this model comparatively tame.
Contributing editor Brian Metzler, the Content Director for UltraSignup.com, has raced every distance from 5K to 100 miles. He has wear-tested more than 2,000 running shoes and is the author of “Kicksology: The Hype, Science, Culture and Cool of Running Shoes” (2019) and “Trail Running Illustrated” (2021). He has raced just about every distance from 100 meters to 100 miles, but he’s most eager to share stories about his experiences pack burro racing in Colorado and riding trains to run trails in Chamonix, France.
RELATED: The Brooks Ghost Amp Is a Light, Lively and Versatile Daily Training Shoe
RELATED: The Diadora Corsa is a versatile everyday trainer with a springy vibe that’s worth a look
RELATED: Altra’s Speedy Vanish Carbon 3 Goes Mainstream with a Split Carbon Plate
RELATED: Tracksmith Eliot Ryder Serves Up Smooth, Stable Springiness
RELATED: The Saucony Paramount Max is a Soft, Bouncy, Stable and Fun Daily Trainer
RELATED: Nike Pegasus 42 Continues its Workhorse Legacy with a More Responsive Ride
RELATED: ASICS Novablast 6 Blends Soft Cushion and Increased Energetic Pop
