This medium-support bra has wide straps and a back keyhole to give you the support and ventilation you need whether you're lifting barbells or doing burpees. luxtreme® Is sweat-wicking, four-way stretch, and engineered not to shrink features Designed for: Yoga Lycra®: Added Lycra® fibre for shape retention Coverage: Pockets for optional, removable cups Medium support: Intended to provide medium support for a B/C cup