Great preowned condition Allbirds Wool Piper Woven Blue Hush (Clarity Blue Sole) Men’s SZ 11. All-day comfort. Everyday style. This classic low top made with premium ZQ Merino wool is the sneaker your outfits have been waiting for.Best For: Walking, cooler weather, everyday wearSuper Soft Material: Warm and cozy premium ZQ Merino wool provides next-level comfort. Wear-with-everything classic style, great for travel. Gently worn condition as pictured.