Nike Sportswear Club Fleece Big Kids' Loose Pants. Meet our favorite cozy essential. Made from lightweight fleece that's smooth on the outside and brushed soft on the inside, these sweats are an easy layer when you want a little extra warmth. A loose fit through the legs helps make them feel extra comfy. We evolved our size range to focus on fit, not gender, to let every kid play their way. Stretchy elastic waistband with drawcord helps make it easy to dial in your perfect fit.