Pay attention to the sizing guide. These have your name embroidered into the them so returns are only on faults. 
 
High performance soft touch fabric for all day comfort
Natural stretch allows for ease of movement and resists creasing
Hygienic High-Temperature Laundry Friendly to 80 C
Durable and breathable poly/cotton blend is perfect for easy wash/wear
Shrink resistant and colour-fast
Gathered elastic waist with internal drawstring for secure adjustment
Functional side slant pockets and 2 cargo leg pockets
Right cargo pocket has inner concealed pocket to stow equipment essentials
Straight leg and loose gender-free body shape suitable for all