A forever classic, this cozy fleece jacket provides the perfect amount of insulation from spring breezes and winter chills. She’s bound to be warm in this long-lasting jacket. Crafted from super-soft and deep 250g MTR fleece, it’s the perfect layering piece and first line of defense to combat the cold, and as an added bonus, the warm collar is flexible enough to wear up or down, depending on her desired level of toastiness. Available in a range of colors and sizes for girls. Regular Fit. To ensure the perfect fit, follow these steps for measuring and refer to the size chart. To determine the neck size, measure at the base or thickest part of your neck. For the chest, measure at the fullest part of the chest, under the armpits and over the shoulder blades, keeping the tape measure firm and level.