Description Maintaining proper posture throughout the day is the key to preventing injuries, reducing neck & back strain, as well as reducing headaches.  ✓ Easily improve your body alignment by standing & sitting with perfect posture. ✓ Align your shoulders, spine, and upper back. ✓ Easily adjustable double lash, to fit your body just right.  ✓ A padded lightweight neoprene corrector can be worn comfortably under or over the clothing, without causing any discomfort.  ✓ Eliminate neck and back discomfort from sitting with rounded shoulders. ✓ Nearly invisible when worn under clothing. Features ✓ ADJUSTABLE  ✓ CONVENIENT  ✓ PRACTICAL  ✓ TRAVEL-SIZED    Size Chart  S: Chest size: 46 - 68 cm / 18 - 26 inch (weight: 20-40KG) M: Chest size: 68 - 91 cm / 27 - 36 inch (weight: 40-60KG) L: Chest size: 91 - 119 cm / 36 - 47 inch (weight: 60-90KG) XL: Chest size: 119 - 150 cm / 47 - 59 inch (weight: 90-100KG+)     30-Day Satisfaction Guarantee Our company mission is to be a part of your health journey. This will not happen if you are left unsatisfied. ✓ Not satisfied? We will give you a full refund! ✓ Any problems? We will send you a replacement free of charge!  Shipping Times United States/Canada: 6-10 Business Days Australia/New Zealand: 6-10  Business Days Rest of the World: 7-12 Business Days   Note: Due to COVID-19 there might be slight delays.