Size 4. Lululemon Invigorate Bra Heathered Black/Black. Preowned and hardly worn so its in LIKE NEW CONDITION! You will be very pleased.*RARE FIND*Sweaty skin, meet cooling breeze. This multi-sport, racerback bra has mesh fabric ventilation.luxtreme® Is sweat-wicking, four-way stretch, and engineered not to shrinkfeaturesDesigned for: TrainingMedium support: Intended to provide medium support for a B/C cupLycra®: Added Lycra® fibre for shape retentionMesh fabric panels: Help keep you coolCoverage: Pockets for optional, removable cups (no cups included)Material: Luxtreme, Mesh