assistant: For a 5K parkrun PB, you want a lightweight racer with snappy energy return and minimal weight penalty—something that rewards your cadence without sacrificing the pop you need to surge. All three picks here are race-day shoes built for exactly this distance. **ASICS Metaspeed Edge Paris** leads for 5K. At 159g, it's the lightest in the group, and The Run Testers praise its "springy and bouncy" feel with a compress-and-bounce trampoline ride—perfect for short, fast efforts. The angled carbon plate biases the forefoot, which rewards the quick turnover a 5K demands. Fordy notes it "felt like I had nothing on my feet," and that featherweight sensation matters when you're chasing a PB. True to size, neutral pronation. **Saucony Endorphin Elite v2** is your wild-card pick if you want maximum bounce and softer cushioning. The Run Testers called it "soft and very bouncy" with a PB-level race experience—Kieran got a 10K PB in it on a twisty course, so it rewards sharp footwork. Carbon-plated, high cushion. It's $275, so pricier than the Edge, but if you like a softer, more forgiving ride at race pace, this delivers. **Adidas Adizero Adios Pro v4** is your value racer at $220. Kofuzi rates it as "a great marathon racer" that blends speed with versatility—it's heavier than the Edge (201g vs. 159g) but still snappy, and the full-length carbon plate is proven. Good lockdown, true to size. It's more of a workhorse racer than a 5K specialist, but the price and ride quality make it a solid third option if you want to rotate shoes or prefer Adidas's geometry. One quick question: **Have you raced in a carbon-plated shoe before, or is this your first super-shoe?** That'll help me calibrate whether the Edge's featherweight, bouncy character is a good fit for your racing style, or if you'd prefer something with a bit more ground feel.