I have no clue why it looks like there is a spot on the back. there isnt. Details Tight Fit Pit to Pit: 14", Waist Length Shoulder to bottom: 20.5" Contours your body Not too short, not too long, just right around the waistband Product Features Racerback shape allows for full range of movement Buttery-Soft and Weightless Nulu™ Fabric So buttery soft, it feels weightless Four-way stretch Sweat-wicking Breathable Added Lycra® fibre for stretch and shape retention Materials & Care Body: 81% Nylon, 19% Lycra Elastane Machine Wash Cold Do Not Bleach Tumble Dry Low Do Not Iron Do Not Dry Clean Wash With Like Colors