Garment for foot with triangular ankle panels

A knit garment is provided to be worn on the foot that has a toe, foot, and heel area. The garment also has a medial triangular ankle panel and a lateral triangular ankle panel. The medial triangular ankle panel has a first medial vertex near the rear, top portion of the foot area, a second medial vertex near the top of the heel area, and a third medial vertex below and between the first and second medial vertices. The lateral triangular ankle panel has a first lateral vertex near the rear, top portion of the foot area, a second lateral vertex near the top of the heel area, and a third lateral vertex below and between the first and second lateral vertices. The sides of the medial and lateral triangular panels extending between the respective first and second medial and lateral vertices define an opening of the garment for a foot.