Boreal's Zephyr Climbing Shoe is just like the classics that saw first ascents on Astroman, Levitation 29, and The Obelisk. This old-school shoe has a "if it ain't broke don't fix it" mantra with a comfortable, symmetric shape that sends cracks, edges, and slabs with a legendary prowess. The only update Zephyr sports is Boreal's FS-Quattro rubber sole for longer-lasting quality. Its split leather upper prevents stretching due to its unique stitching, and there's a bit of canvas inside the shoe for breathability and durability. The full insole and midsole provide plenty of support for multi-pitches.