These relaxed fit overalls simply slip on and have adjustable sliding roller shoulder straps. You'll always have somewhere to put things, with two back pockets, two front pockets and even a bib pocket. I'd probably keep some snacks in there. Not a sandwich, maybe a protein bar? Anyway, overalls. They're a good look, get into them. 

Made in India from 98% cotton, 2% elastane pinwale corduroy. Fabric provides some stretch.

We've measured the waist seam across the front, where the bib meets the pants, while garment is lying flat, to give you an idea of size. These are a unisex item, and are designed to be worn loose.
XXS: 46cm
XS: 47-48cm
S: 49-49.5cm
M: 52cm
L: 54cm 
XL: 56.5cm

As a guide, we would give the following Australian women's size equivalents:
XXS = Australian size 6-8
XS = 8-10
S = 10-12
M = 12-14
L = 14-16
XL = 16-18
XXL = 18-20