Woodland pattern BDUs have been obsolete since 2005.
That’s the ACU in the photo, designed for wearing under body armor. You can be super lean & fit & still look like you’re overweight & wearing rumpled pajamas, in the ACU.
The PT uniform of shorts & T-shirt gives a better idea of individual fitness & body mass.
Lots of out of shape ones in the PT uniforms. The ones in shape are running and the chunkies are always walking.