Bambo Nature's eco-friendly, disposable training pants are free of harmful chemicals, all known allergens and now the fluff pulp is made TCF (totally chlorine-free). These training pants are designed to make potty training easy. Your toddler will feel like a big kid with flexible, thin and easy to pull up and down design. Bambo training pants feature a three-layer design with a super absorbent core that can stand up to multiple wettings—even overnight. Size 4 fits toddlers weighing 15 - 31 lbs.