ONeill Sweatpants O ́Neill Lb Bottoms. Sweatpants O ́Neill Lb bottoms. The children's comfortable O ́Neill tracksuits are made from a pleasant and elastic material that you will appreciate during sports and leisure activities. Indulge yourself in comfort and style in one. Specifications: Regular cut; Elastic waistband with tightening capability; Leg ends with ribbed cuffs; Two practical side pockets; Distinctive brand logo on the front piece. Material: 60% cotton, 40% polyester.