High-concerned chemical: none Craft of Weaving: Tatting Model Number: hnp Pattern Type: Solid Material: Silk Brand Name: TONKINS Briefs & Boxers: BRIEFS CN: Zhejiang Origin: Mainland China Gender: Men clothes design details: U convex design component content: above 95% Pants long: briefs antibiotic: simple and natural waist type: mid waist classification of fabric: silk material function: antibiotic       Product Description: Name:   Men's silk underwear Fabric:   100% mulberry silk Color:    Many colours pictures.So pls let me know which colour you would like to purchase before you place an order. Thank you very much Wash and caring:  Hand wash, separately from other items; Hang dry, or cool iron on the reverse side  Please do not expose silk under the strong sun.     Size                      Waist(cm)           Hip(cm)           L                          70-83                        84-95         XL                         83-95                        95-105         XXL                        95-105                     110-120                                             Silk health care efficacy: 1.Skin care: Silk protein fiber is rich in the amino, amino hydrophilic factor, has the very strong suction wet sex, can regulate skin moisture, keep skin clean. Silk fiber contains 18 kinds of amino acids similar to human skin ingredients, can increase the vitality of epithelial cells, prevent hardening of the arteries, nourish the skin. 2.Uv protection: Silk fibroin b of glycine, tyrosine and tryptophan is ultraviolet shielding, can effectively prevent ultraviolet (uv) radiation, greatly reduce their risk of developing skin cancer. 3.Pollution of antimicrobial: Silk fiber has good hygroscopicity and put wet, it can make the skin rapid sweating, absorption metabolism of carbon dioxide. Silk sericin composition has the ability to prevent mites and mold breed, have antiseptic skin allergy effect 4.Crease resistant anti-aging: Silk contains lysine, leucine, etc can accelerate the metabolism of skin surface lipid membrane, enhance skin elasticity, improve blood circulation, such as threonine, serine, prevent dry skin wrinkles, delay skin aging.