assistant: You're in the sweet spot for a carbon racer — 60 mi/wk is solid volume, and midfoot striking with your body weight gives you good options across the pack. Before I narrow it down: **what's your current marathon PR, and have you raced in a super-shoe before?** That'll tell me whether you need maximum cushion (if you're newer to racing shoes) or if you can lean into a snappier, more aggressive platform. In the meantime, here's what I'm seeing in your data: **Saucony Endorphin Pro v4** is the most versatile pick for marathon work — Doctors of Running notes it "rolls well" at steady marathon effort, and EDDBUD calls it their top super-shoe pick for all-around 5K-to-marathon versatility. It's got a wider forefoot (good for midfoot strikers who need room), a durable PEBA midsole rated for 200+ miles, and that full-length carbon plate. The trade-off: Doctors of Running flagged that it struggles at half-marathon / tempo paces — it's "either fast or not," meaning it shines at true race pace but feels less snappy in between. **Puma Deviate Nitro Elite v4** is the other serious contender — The Run Testers calls it one of Tom's top carbon-plate race picks, and it's built explicitly for marathon and threshold work. It's lighter (170g vs 218g) and has a softer, plush PEBA ride with excellent energy return. The catch: it's narrower in the forefoot and only rated for 100+ miles, so you'd be replacing it sooner on a 60 mi/wk schedule. **Adidas Adizero Takumi Sen v11** is the wild card — lighter still (184g), well-regarded, and cheaper ($180 vs $225–$250). But it's a moderate-stack shoe (32/25mm) built more for 5K/10K speed work and tempo than for marathon cushioning. It could work if you're a naturally efficient runner, but it's the riskiest pick for a sub-3 marathon where you'll want that extra midsole protection over 26.2 miles. What's your prior super-shoe experience, and are you targeting a specific marathon date?

assistant: **Alphafly 3** for your sub-3 marathon — it's the safer, more durable pick for marathon-distance racing on a 60 mi/wk schedule. Here's the ride-field delta that matters: The **Vaporfly 4** is a snappy, aggressive 5K/10K shoe (36/30mm stack, 6.0mm drop, only 167g). It's got that direct, bouncy ZoomX feel that rewards fast turnover, but it's built for shorter distances — durability is rated "low miles," and at marathon pace over 26.2, you'd be fighting the shoe's inherent snappiness rather than letting it work for you. It also runs narrow in the forefoot, which can be a problem on long efforts when your feet swell. The **Alphafly 3** is built for exactly what you're doing. Ben Is Running calls it "one of Nike's best carbon racers yet, especially at half marathon and marathon distances," and The Run Testers notes it's "a very safe marathon pick for most runners" with a "softer at the heel" ride that "rolls like butter." Stack is 40/32mm (same as the Endorphin Pro), drop is 8.0mm, and durability is 100+ miles — you'll get multiple marathons out of it. The forefoot is wider than the Vaporfly, and Doctors of Running confirms it handles "faster, more aggressive turnover" without losing stability, which suits a midfoot striker who can open up the stride. The only caveat: Doctors of Running notes the ZoomX has a "trampoline-like" feel that requires "self-discipline to control the bounce." If you're a rhythm runner who needs predictability, that bounce might feel loose. But for a sub-3 effort where you're hunting pace, that responsiveness is an asset. **Verdict: Alphafly 3.** It's the marathon-specific racer; the Vaporfly 4 is a 5K/10K shoe you'd outgrow over 26.2 miles.