85% Polyester, 15% Spandex. Elastic closure. Check the size chart of the third picture to select the appropriate size. 9" inseam based on size medium; 2 phone pocket is big enough to put phone x-plus, and hold it very steady. Running shorts for men with elastic along the waist and thighs, which's elastic is firm and snap back easily, while still feeling comfortable. Dry-FIT fabric helps keep you dry and comfortable ; Ergonomic seams and stretch fabric provide a natural feel. Designed for all seasons (yoga, workout, running, biker, weight training, athletic, cycling, baseball, basketball, soccer, football, squat, weight training, cycle, surfing, yoga, all weather sports)