A child who is 12 to 18 months old is known as a toddler. Toddlers need additional clothes as their physical activities change during this phase. Their crawling activity is the most significant one during this phase. Also physical growth is rapid. So clothing selected should be large enough to allow for growth. Cotton is best because it is a good conductor of heat, absorptive, easy to wash, cheap, durable and soft etc. Firmly woven and durable materials like poplin, cambric etc are ideal for toddlers.