Swiftwick Aspire Four Socks - 4", Pewter, Medium Shifters Quad Lock MAG cases are

Quad Lock MAG cases are thinner and flatter with a customisable MAG Ring

UPC: 810159401937

2 flush mount spindle bolts

Manufacturer Part Number: 5M137M/BZR

Swiftwick Aspire Four Socks - 4", Pewter, Medium Shifters Quad Lock MAG cases areThe Aspire offers a thin, breathable feel and firm compression for enduring performance on runs, rides, and more. Engineered with moisture wicking fibers, it keeps feet and ankles dry, secure, and supported. Engineered with an ultra thin profile to deliver unparalleled fit & feel Signature Olefin fibers wick moisture, keeping your feet cool, dry, and blister free Grips the contours of your feet to support the arch and help reduce fatigue 53% Nylon 39%