Published by at 09/08/2026 This Lululemon Think Fast Long Sleeve top in Women’s Size 12 is a versatile activewear piece perfect for winter, fall, and spring seasons. Made with a blend of polyester, nylon, and spandex, this heathered herringbone soft black top features stretchy, naturally breathable Rulu fabric, is sweat-wicking and buttery soft. Featuring a crewneck and long sleeves for a comfortable fit. Ideal for activities such as gym training, cross-training, and running, this athletic fit top offers stretch, moisture-wicking, and breathable features for optimal performance. The classic/fitted sleeve design and tagless construction make it a stylish and practical choice. This cozy base layer is designed to keep your workouts outside as the temperature drops.