Effects Improved physical performance, electromagnetic wave protection, allergen対策 in the air, prevention of lower back pain and stiff shoulders, support for restful sleep, etc. For the time being, If you feel any discomfort or physical problems, discontinue use and consult a doctor. How to Use ・You can use it not only when sleeping or as everyday wear, but also when exercising or in caregiving or work settings that involve physical labor. ・The best way to experience the effects of the Gemergy shirt is to wear it for as long as possible. - Brand: Gemergy - Product Name: T-shirt - Style: Short Sleeve - Size: XL - Color: Black [Condition] New with tags [Size] XL Length 66 cm Shoulder Width 46 cm Width 49 cm Sleeve Length 42 cm Thank you for viewing.