2016 VKWEIKU Men's Underwears Magnetic MicroModal Trunks Therapy Boxers (L,black) Brand: VKWEIKU; 92% MicroModal (from Lenzing Austria) + 8% Spandex +18 Magnetites underwears;; 982 Tourmaline Therapy Underwears; Plain Crew Neck Knickers; Size Chart: Chinese L(Height165-170cm/Waist25-29in); Chinese XL(Height170-175cm/Waist29-33in); Chinese XXL(Height175-180cm/Waist33-37in); Chinese XXXL(Height180-185cm/Waist37-41in) Shipping Time:(Seller:VK Underwear's Shipping Time: 6-12 days to USA, 8-18 days to other global countries).Amazon Prime Shipping Time:1-4 days in USA. ---Return Policy: Return is allowed without any condition on all items from Seller:VK Underwear and Amazon Prime.