If by "long piece" you mean a full-body garment with legs, these unitards provide maximum coverage. Capezio Long Sleeve Unitard Capezio& more Go to product viewer dialog for this item.
Eurotard Dancewear - Microfiber Long Sleeve Leotard - Adult (44265) - Black Carolina Dancewear Go to product viewer dialog for this item. buy black leotard
A more affordable, sleeveless option with moisture-wicking fabric, available at Walmart ($19.98). If by "long piece" you mean a full-body
A standard choice made from a cotton/nylon blend. Available at Capezio ($32) and Kohl's ($32). sleeveless option with moisture-wicking fabric