-Made from custom-milled Lunaluxe™ Bamboo that’s gentle on sensitive or eczema-prone skin -Seasonless fabric keeps them cool in the summer & cozy in the winter -Fold-over mittens (up to size: 12-18 months) for scratch-free sleep -Fold-over foot cuffs (on all sizes) easily convert from footless romper to footed sleeper -Double zipper makes diaper changes a breeze -No snaps, buttons or interior tags -Fits up-to-3x longer than the average sleeper