Style Number: A01 .KAILAS lightweight, quick-drying, breathable, and mildly elastic polyester fabric. Washable without distortion, featuring fine long fibers that provide excellent moisture-wicking and breathability, equipped with 7A-level physical antibacterial natural protection.Polo collar with double-layer reinforced adhesive for a sophisticated and visually appealing structure that maintains its shape without sagging, providing a strong three-dimensional feel.Three-dimensional tailoring at the underarm and side seams for comfortable movement.Suitable for daily life and casual business; versatile for all ages and flattering to the figure, with a maximum wearability of pounds.M: Shoulder width 44.4 cm, chest circumference, garment length 67 cm, sleeve opening 16.6 cm, recommended weight - pounds.L: Shoulder width 45.7 cm, chest circumference, garment length 69 cm, sleeve opening 17.3 cm, recommended weight - pounds.XL: Shoulder width 47 cm, chest circumference, garment length 71 cm, sleeve opening 18 cm, recommended weight - pounds.2XL: Shoulder width 48.3 cm, chest circumference, garment length 73 cm, sleeve opening 18.7 cm, recommended weight - pounds.3XL: Shoulder width 49.6 cm, chest circumference, garment length 75 cm, sleeve opening 19.4 cm, recommended weight - pounds.4XL: Shoulder width 51 cm, chest circumference, garment length 77 cm, sleeve opening 20 cm, recommended weight - pounds.5XL: Shoulder width 52.2 cm, chest circumference, garment length 78 cm, sleeve opening 20.8 cm, recommended weight - pounds.