Apparel giant Gap has introduced petite and tall sizes for women, available exclusively at its Gap.com website.

The lines are aimed at women who fall into the 5 feet, 4 inches or 5 feet, 11 inches categories.

Gap.com vice president and general manager Felix Carbullido commented: "Petite and tall female consumers have traditionally been underserved by the apparel market.

"We're excited to introduce petite and tall sizes to better meet consumers' needs and offer them Gap's great casual styles in sizes that will fit them better than ever."

As Carbullido points out, retailers that do offer petite and tall sizes often neglect more casual lines in favour of tailored garments.

The new petite and tall product offering mirrors the design and styles of the Gap women's line, but several product alterations have been made in order to perfect the new ranges, such as narrowed shoulders, longer sleeves and higher/lower armholes.