Ships from Hongkong.Boy's Toddler Underwear.Perfect for that potty training time in a child's life. Give them the First Pair of Underwear. Experts say that after a few weeks of successful potty breaks, a child may be transitioned into training pants before going into regular underwear. Our training pants have a layer of double sided terry sandwiched between the layers of cotton for extra absorbency in case an accident occurs. The perfect stepping stone in the potty training process.