Amazon offers the Mueller Adjustable Lumbar Back Brace in Regular for $19.53. Clip the 20% off coupon to cut it to $15.62. Plus, Prime members bag free shipping.(Non-members can spend $49 or more to qualify for free shipping; otherwise, shipping costs $5.93.) That's the lowest total price we could find by $4, although we saw it for a buck less last September. It features removable lumbar pad cushions, steel spine supports, and fits waist sizes 28" to 50".