The Lululemon Base Runner Long Sleeve Straightup Stripe in Black White is a versatile activewear top perfect for running and jogging. Made with a medium fabric wash, this athletic fit pullover features a classic crew neck and long sleeves for added comfort and coverage. The black and white striped pattern adds a stylish touch to the casual pullover, making it a must-have for the fall and spring seasons. Machine washable for easy care, this Lululemon base runner top is designed for women in size M who value both style and functionality in their activewear wardrobe.