ASAS.USA via Amazon offers the Lapasa Women's Racerback Yoga Double-Layer Sports Bra in several colors (Pink Space Dye pictured) for $12.99. Coupon code "97SKGF8I" cuts that to $9.74. (Some colors are available for $16.99 before coupon, $12.74 after.) Plus, Prime members receive free shipping. (Non-members can order via Subscribe & Save to get free shipping.) That's $3 to $4 off list and the lowest price we could find. It's available in select sizes from XS to XL.

Note: If ordering via Subscribe & Save, be sure to cancel your subscription after your order arrives to avoid being billed for subsequent shipments.