From the manufacturer

The Columbia Youth Steens Mountain II Vest is crafted from our deep 250g MTR filament fleece for the perfect amount of warmth your little ones will enjoy on any crisp day.

Soft and warm, the fleece material is the perfect outer or mid layer for any Fall, Spring or Winter activity.

This fleece vest provides a warm collar that's flexible enough to wear up or down for extra warmth around the neck, two zippered pockets to keep their treasures secure.

Columbia’s attention to detail is what sets our apparel apart. Specifying only the highest quality materials, expert stitching and craftsmanship. This is a long-lasting vest he will enjoy for seasons to come.