The Adalynn romper comes sleeveless as standard, but you have the option to add sleeves and/or shoulder flutters. Peplums can also be added. If you'd like a split peplum, add 'fabric peplum' and leave a note at the checkout for it to be split. If you would like to add a collar, lace trim etc they can be found in the "add ons" section and will need to be added to your basket seperately. To choose your fabric head over to the "fabric" section and add it to your basket.