The Lululemon Women's Define Jacket in white and gold, size 4, is a stylish and functional activewear piece perfect for spring. Made from nylon with insulation material of polyester, this long-sleeved jacket features a zip closure and a blended fabric design. Ideal for yoga and other active occasions, this basic jacket from the Lululemon Define line is machine washable and a must-have for any woman's wardrobe.