It‘s made of Nylon and elastane, they are light, breathable and have a good elasticity and silky touch,avoid sweltering heat even in hot weather.
Stretched durinbg movement but only to follow the body movement and it retains it elasticity. They have been supportive but not binding or constricting.
More generous in the man parts, Ample room for the "boys" , enjoy the comfort of breathing!
Wide waistband prevents rolling and stays snug, but never squeezes too tight.