Chaser Kids - Best Big Sis Shirttail Muscle (Little Kids/Big Kids). Color Pegasus. Low Stock. On sale for $15.05. MSRP $35.00.. 1 left in stockBrand NameChaser KidsProduct NameBest Big Sis Shirttail Muscle (Little Kids/Big Kids)ColorPegasusPrice$15.05MSRP: $35.00Rating