The Hatley Cotton Rib Pajama Set is a toddler pajama set in soft, 100 percent organically grown cotton rib. The same fabric covers the long-sleeve top and the pajama bottoms. What Our Gearhead(R) Experts Are Saying:"My toddler sleeps in a full sprawl, and the elastic waistband stretches along with every position. The gusset at the inseam, an added panel for flexibility, covers the moments when a knee bends or a leg kicks out."