Men's Vest One-piece Briefs Underwear Color:Black Frequency response: 120hz-20khz

Frequency response: 120hz-20khz

XL: shoulder 16

Weather Heart rate detection/Blood pressure detection/Blood oxygen detection/Wole-day heart rate monitor Timer

you can bend these flexible branches into any shape

Upper: Faux leather

Men's Vest One-piece Briefs Underwear Color:Black Frequency response: 120hz-20khzProduct information: Color: black Fabric: Soft silk and faux leather Applicable season: summer Sleeve Length: Suspenders Thickness: Thin section Pants length: briefs Size Information: Size: S M L XL XXL 3XL 4XL Note: 1. Asian sizes are 1 to 2 sizes smaller than European and American people. Choose the larger size if your size between two sizes. Please allow 2 3cm differences due to manual measurement. 2. Please check the size chart carefully before