The buttery soft, always flattering Foundation 365 Crew Neck top from Prana looks great worn solo or underneath season after season. The t-shirt has a crew neckline and seam details at the center back. And this top lives up to its name. The Tencel Modal material with a little elastane has enough stretch to be worn for all your activities, but is so soft and supple that you'll feel like you're walking on air.