NO NEED TO PASS---- DOES NOT RETAIN SWEAT------ WEIGHT=LESS THAN 120 GRAMS---- BREATHABLE MESH----- Dry Fit T-shirt 100% polyamide SPORT DRY MAGIC FIT with 10% U.V. protection. Cold, cold and comfortable knit, ideal for sports and for use on hot days. Very light knit with a soft touch. Opaque polyamide mesh with natural antibacterial function, thanks to the titanium dioxide present in the raw material. Ideal for sports that require high performance, providing comfort and freedom of movement. High water absorption capacity (perspiration). Aerodynamic modeling, developed especially for sports. Excellent for taking on trips as it doesn't wrinkle and takes up little space. It weighs only 130 grams which contributes to better performance. Can you exchange it if it doesn't fit? Of course, the first exchange on us. Can you exchange it if it has manufacturing defects? Yes, we have it covered. We have one of the best services in the segment!