The Lululemon Define Jacket in 'Midnight Blue' (labeled '午夜蓝金'—Midnight Blue with Gold Zip) is a high-performance, form-fitting activewear jacket designed for yoga, training, and light outdoor activity. Crafted from signature Nulu™ or Luon™ fabric (likely Nulu for softness and stretch), it features a sleek, cropped silhouette with a high mock neck, full-length gold-tone metal zipper, and two diagonal zippered side pockets for secure storage. Strategic seam lines contour the torso for flattering fit and mobility, while thumbholes at the cuffs prevent ride-up during movement. The smooth, matte finish and minimal branding (no visible logo on front—typical of Lululemon’s clean aesthetic) emphasize modern athleisure appeal. Ideal for layering over sports bras or tanks, this jacket offers light warmth and wind resistance without bulk. Perfect for studio sessions, urban commuting, or post-workout errands—blending function with elevated streetwear style. Seasonally versatile for spring, fall, and mild winter days. Machine-washable and quick-drying, it maintains shape and color integrity through repeated use.