Tips for Visiting the Oxford University Colleges – Oxford 。Model Name: Feathercraft Grand Blucher Oxford Style Number: C30505 Size: Men\'s 11 Medium (11 M) Color: Rock Ridge / Dark Gray (ROCK RIDGE/DRK) Key Features Material: Typically crafted with premium suede or leather uppers featuring detailed stitching. Cushioning: Injected with signature GRAND.ØS energy foam technology for lightweight responsiveness, shock absorption, and all-day flexibility. Outsole: Designed with a multi-directional Grand Flex pattern and durable TPU pods on the heel and forefoot to enhance traction.