New with tag. Everlane The Long-Sleeve Supima® Square-Neck Bodysuit Size small Color Black Slip into a foundational piece that fits like a hug. Made from a blend of soft, breathable Supima® cotton and stretchy elastane, The Long-Sleeve Supima® Square-Neck Bodysuit features a classic square neckline, form-fitting shape, and snap closure for extra ease. Style underneath a tailored blazer or wear on its own with high-waisted denim.