Add your 4 chosen pairs from the 4 for $40 range to your cart.
Enter Code HELLO20 at checkout for $20 off and the total should come down to $20 from $40
Works out to $5 per item.
If you order 4 of the $35 pairs for $20 this is a saving of $120 from RRP.
FYI the sizing of most styles is on the small size. I'm a 34 waist, however the M and L were too tight so I went with the XL and they are just right.
The L of this style fitted fine however. (very soft cotton - would recommend!)
Hoping someone finds this useful!