The Flex tight tee is made in a high performance fabric, very soft polyamide fabric supported by elastane to get the perfect tight fit. Sleeves are cut quite short to achieve a comfortable fit and the right look! Better Bodies athlete team with it´s ideas, feedback and tests made great efforts to get the right fit and shoulder design on this tee and the outcome is great!. - A must have product! Quality: 93% Polyamide, 7% Elastane