* New with Tags * Cotton * All Season * Navy Dinosaurs This Old Navy Boys Onesie is a size 12-18 Months.  The Onesie is pre-owned in New with Tags condition.  Typically Old Navy Navy Dinosaurs Onesie would be worn for All Season.   Our products are sourced directly from Swoondle Society members and partner brands. Swoondle screens, values, photographs all products listed so you know exactly what to expect. Only members can trade items, but you don't need to be a member to shop.  Swoondle.com is a mom-founded start-up that provides parents an easy and sustainable way to buy and/or trade kid’s clothes online.