NWT Maidenform Beige Wear Your Own Bra Ultimate Slimmer Torsette #5166 $46 M

Probably the most effective form of shapewear if you're after something that eliminates back bulges and nips in your waist ... and the wear-your-own-bra design means that your bust stays unsquished while the rest of you gets trimmed down. It also hooks up in front so you don't have to get your arms all tangled up in the mornings!

Personally tested -- this cut me down by 2" immediately and produced an instant hourglass shape as promised! *woohoo*

Maidenform says:

Out with the old and in with the new! No need for old fashioned, uncomfortable corsets - get the hourglass look you want in shapewear with our Flexees® Ultimate Slimmer Wear Your Own Bra (WYOB) Torsette!

Provide ultra firm 360 degree shaping throughout the mid section and back
Fabrication is breathable and pulls moisture away from skin
Soft fabric provides firm shaping and smoothing all over
Helps your posture
Targets love handles by eliminating the "muffin top" effect
High neck behind to reduce back bulges (not to be worn with low or scoopback tops)
Gives you an hourglass figure
Retails for USD46
Fabric Content

Fabric Content
Body: 81% Nylon, 19% Lycra®
Inner Lining: 86% Nylon, 14% Lycra® Elastane
Imported
Style: 5166

Maidenform Size: US M
Fits US Dress Size: 8-10
Waist: 28"-29.5"
Hips: 38.5"-40"
Length: approx. 23” (adjustable with straps)

Runs true to size but do keep in mind this is meant to be tight. Back neckline is approx 3" deep measured from shoulder (adjustable).
If you want smoothing/firming rather than slimming, order one size larger than usual.