The OTSO short sleeve technical t-shirt combines the best design and the best technologies to create a super lightweight, versatile and comfortable garment with a unique style. Ultra-Breathable fabric that maximizes ventilation and keeps the body always dry. Designed so that your performance does not decline even on the most humid and hot days. Super light and flexible fabric, with vertical and horizontal stretch. It offers the greatest freedom of movement to make you move faster and more agile. Made with the softest fabric. It provides a pleasant contact with the skin and prevents chafing on the nipples or armpits. You will forget that you are using it even after long hours of use. Thousands of unique designs to stand out. Dare with your favorites and combine them with OTSO! SIZE GUIDE Long Deep Manga S 67 cm 50 cm 21 cm M 69 cm 53 cm 22 cm L 71 cm 56 cm 23 cm XL 73 cm 59 cm 24 cm