Havep Overall with press-studs is a basic model overall with a very good fit and quality.

Available in the sizes XS to 3XL and in different colors.
Material properties:

65% polyester
35% cotton
Technical specifications:

Pen pocket
Cell phone pocket
Chest pocket
Back pockets left and right
Two front pockets
Two side slits
Pocket for folding ruler
Measuring tape pocket
Specifics:

Size 1 = 40-42 = XS (extra small)
Size 2 = 44-46 = S (small)
Size 3 = 48-50 = M (medium)
Size 4 = 52-54 = L (large)
Size 5 = 56-58 = XL (extra large)
Size 6 = 60-62 = XXL (extra extra large)
Size 7 = 64-66 = 3XL (extra extra extra large)