Hanna Andersson Little Boy Kids Short John Pajamas In Organic Cotton Imported 100% organic combed cotton ribbknit Super-smooth flatlock seams Comfy encased stretch waist Certified by OEKO-TEX Standard 100 | 03.U.9375 - FI Hohenstein Prewashed  Wear snug fitting; not flame resistant. Please use the snug fit cotton sleepwear size chart