Provisional cast-on chain as recommended in pattern.
13 diagram repeat for each strap.

Started to follow size 5, but at the end of the first front switched to size 6 (46-->48 stitches).
BUT did 4 decreases just after joining front and back (to help closing gap). So ended up with 224 stitches for body.

Did the slightly flared version.

Add extra lenght to body, did 1 row of purl + 1 row of knit and then used suspended bind off (purlwise).

Be careful if you knit in english, don’t pick-up stitches from provisional cast-on with 3.5mm needles, use 3.75mm (I think there is a mistake, this instruction is not indicate in the french version).