Patent ID: 7849609

Claim:
An interior member for a foot-receiving device comprising: a first material element having a length defined in a toe to a heel direction and a width defined in a medial to a lateral direction, the first material element at least partially defining a foot-receiving chamber, the first material element including, a plantar portion forming a bottom surface of the interior member, a heel-surrounding portion seamlessly connected to the plantar portion and extending-upward from a rear end of the plantar portion, a lateral side portion seamlessly connected to the plantar portion and extending upward from a lateral side of the plantar portion, a medial side portion seamlessly connected to the plantar portion and extending upward from a medial side of the plantar portion, and an Achilles portion that forms a double layer along an Achilles region of the foot-receiving chamber, the Achilles portion being elongated and having a width measured in the medial to the lateral direction that is smaller than a width of the heel-surrounding portion measured in the medial to the lateral direction; and the first material element includes the plantar portion, the heel-surrounding portion, the lateral side portion, the medial side portion; and the Achilles portion in a continuous, one-piece arrangement, wherein the plantar portion is seamless, such that the bottom surface of the interior member has no seams thereon.