Elevate your everyday sneaker with a clean, modern silhouette built for comfort and sustainability. The Tree Runner NZ blends refined style with materials designed to feel both light and grounded-perfect for daily wear, travel, and beyond. Upper & Materials The upper features Allbirds&'; "Tree Knit" made with TENCEL(TM) Lyocell (tree fibre) blended with recycled polyester, offering a breathable, airy feel that keeps your feet fresh and cool. The design maintains a minimalist aesthetic, with subtle texture from the knit and a sleek profile suited for many occasions. Midsole & Comfort Equipped with the signature SweetFoamA(R) midsole, redesigned with an upgraded under-foot contour (10.2 mm forefoot / 20.0 mm heel) to deliver smoother, more supportive strides. Inside, there&';s a dual-density "Featherbed" insole featuring memory-foam cushioning paired with a wool-blend sockliner, giving plush comfort for long periods of wear. The collar and tongue lining include a wool-blend for a soft, supportive feel at key contact points. Design & Fit The "NZ" moniker nods to Allbirds&'; New Zealand heritage while also signaling a refreshed version of their fan-favourite Tree Runner model. The fit runs true to size for most, though as with many knit-upper casual sneakers, you may prefer trying on if you&';re between sizes or have wider feet. With its streamlined silhouette and neutral to bold color options, the sneaker works equally well with jeans, casual dresses, or travel outfits. Sustainability & Ethos Materials are chosen with environmental impact in mind: tree fiber uppers instead of heavy synthetics, and sugar-cane-based foam midsoles. The manufacturing and material choices align with Allbirds&'; broader mission to reduce carbon footprint and use more earth-friendly alternatives. Care & Maintenance The shoe is machine-washable approved: simply remove the insoles and laces, hand-wash them separately, then let the uppers gently air-dry. Because the knit upper breathes well, you&';ll likely find it holds up well to regular wear-just follow the care instructions for longevity.