Basic round bottom stringer decisive fitness bodybuilding stringer vest designed for training, however they can be worn casually during summer by the confident many! They are a great option when training upper body as you can see your muscles conract and the maximal exposure provides the ultimate in breathability! Looking for a tback you'll love to wear? Look no further. Wearing this t-back is an experience in itself - fitting in all the right places complimenting your shape while drawing the sweat away from your body. Fit:- slim fit type :- y back type basic round bottom stringer material: - 92% polyester + 8% spandex fabric design :- non abrasive seam design, polyester spandex fabric suitable for: -running, jogging, marathon -in gym, training, fitness -play ball games, team sports -cycling, camping, hiking, climbing, field sports, etc. Available color: grey melange, maroon melange, blue melange note: 1) above size for manual measurement, due to personal measurement technique is different, there maybe 0.5-1.5 inch error of the physical. 2) the actual color of the item maybe little different from the pictures shown on website caused by your monitor and light brightness when browsing.