Walking boot, chafe assembly, protective rim for a push-button release valve and related methods

A method of manufacturing a walking brace, the method comprising:

• providing a U-shaped malleable stay that is configured to hold a manually-bent shape;
• overmolding an integral portion of the walking brace around the U-shaped malleable stay to form a footbed, a first upright disposed at a first side of the footbed and a second upright disposed on a second side of the footbed such that the U-shaped malleable stay extends through each of the footbed, the first upright and the second upright;
• forming a plurality of apertures in at least a portion of the walking brace;
• and
• providing a plurality of rotatable chafe assemblies, each comprising:
• a chafe comprising:
• a head having a slot for receiving a strap,
• a locking end portion, and
• a neck coupling the head to the locking end portion, the neck narrowing from the head to the locking end portion thereby allowing the neck to flex and extend in a direction of tension exerted by the strap;
• and
• a chafe lock comprising:
• a cap,
• a slot disposed under the cap, the slot configured to receive the locking end portion of the chafe, and
• a plurality of snap clips configured to rotatably secure the chafe lock in a respective one of the plurality of apertures and the locking end portion of the chafe in the slot of the chafe lock.