Review: Petzl’s Swift RL and Iko Core Headlamps Go Head-to-Head
Two popular and affordable headlamps for runners — the Petzl Iko Core and Petzl Swift RL — have surprisingly little in common. Here’s an in-depth comparison. Embarking on an ultramarathon means committing to run for a very long time. So long, in fact, that you’ll…
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