An automatic lacing system for an article of footwear, comprising: a strap moving mechanism; at least one strap (111, 112, 113, 114) attached to the strap moving mechanism, the at least one strap (111, 112, 113, 114) being configured to adjust an upper of the article of footwear, the upper including a first sidewall portion and a second sidewall portion, the first sidewall portion and the second sidewall portion being disposed on opposite sides of the upper and spaced apart by a lacing gap; the at least one strap (111, 112, 113, 114) comprising a first end portion attached to the strap moving mechanism, a second end portion attached to the second sidewall portion of the upper, and an intermediate portion disposed between the first end portion and the second end portion; wherein the automatic lacing system is configured to be controlled between a closed position and an open position; wherein the at least one strap (111, 112, 113, 114) is configured to pull the second sidewall portion of the upper towards the first sidewall portion when the automatic lacing system is in the closed position; wherein the lacing gap between the first sidewall portion and the second sidewall portion is configured to increase when the automatic lacing system is in the open position; and wherein the first sidewall portion includes a rigid hollow plate forming at least two substantially parallel channels (1341, 1342, 1343, 1344); and wherein the rigid hollow plate is configured to receive the intermediate portion of the at least one strap (111, 112, 113, 114) in one of the at least two substantially parallel channels (1341, 1342, 1343, 1344), characterized in that the strap moving mechanism further comprises: a motor including a driveshaft and powered by a power source; the driveshaft including a gear (1240, 1242); and a belt (1250, 1252) configured to engage the gear (1240, 1242); wherein the belt (1250, 1252) is configured to supply power to the at least one strap (111, 112, 113, 114). a strap moving mechanism; at least one strap (111, 112, 113, 114) attached to the strap moving mechanism, the at least one strap (111, 112, 113, 114) being configured to adjust an upper of the article of footwear, the upper including a first sidewall portion and a second sidewall portion, the first sidewall portion and the second sidewall portion being disposed on opposite sides of the upper and spaced apart by a lacing gap; the at least one strap (111, 112, 113, 114) comprising a first end portion attached to the strap moving mechanism, a second end portion attached to the second sidewall portion of the upper, and an intermediate portion disposed between the first end portion and the second end portion; wherein the automatic lacing system is configured to be controlled between a closed position and an open position; wherein the at least one strap (111, 112, 113, 114) is configured to pull the second sidewall portion of the upper towards the first sidewall portion when the automatic lacing system is in the closed position; wherein the lacing gap between the first sidewall portion and the second sidewall portion is configured to increase when the automatic lacing system is in the open position; and wherein the first sidewall portion includes a rigid hollow plate forming at least two substantially parallel channels (1341, 1342, 1343, 1344); and wherein the rigid hollow plate is configured to receive the intermediate portion of the at least one strap (111, 112, 113, 114) in one of the at least two substantially parallel channels (1341, 1342, 1343, 1344), characterized in that the strap moving mechanism further comprises: a motor including a driveshaft and powered by a power source; the driveshaft including a gear (1240, 1242); and a belt (1250, 1252) configured to engage the gear (1240, 1242); wherein the belt (1250, 1252) is configured to supply power to the at least one strap (111, 112, 113, 114). a motor including a driveshaft and powered by a power source; the driveshaft including a gear (1240, 1242); and a belt (1250, 1252) configured to engage the gear (1240, 1242); wherein the belt (1250, 1252) is configured to supply power to the at least one strap (111, 112, 113, 114).