Image 1 of 1 Gap Long Sleeve Onesie $5.00 0 - 3 months; sturdy cotton long sleeve onesie; sweet eyelet trim detail around neckline. Purchase Added! 0 - 3 months; sturdy cotton long sleeve onesie; sweet eyelet trim detail around neckline. You Might Also Like Quick View Ralph Lauren Polo Floral Ruffle Dress $20.00 Quick View Gap Cotton Long Sleeve Onesie $5.00 Quick View Carter Newborn Cartigan $5.00 Quick View Car Onesie $5.00 Quick View Grey & White Onesie $5.00