Process of changing cross sectional shape within a textile

A textile suture that has a first cross-sectional shape along a first portion and a second cross-sectional shape along a second portion formed by the process of:

• pulling a textile through a heater;
• applying different heating levels to the first portion and the second portion of the textile by heating the second portion of the textile to cause the second portion to exit the heater at a second temperature, wherein the first portion exits the heater at a first temperature, wherein the second temperature is greater than the first temperature;
• and
• pulling the first portion at the first temperature and the second portion at the second temperature through a die, such that the first portion and the second portion both pass through the die to cause the second portion of the textile to permanently change a cross-sectional shape to the second cross-sectional shape based on a shape of the die, wherein the first portion partially or fully returns to the first cross-sectional shape after exiting the die, and wherein the second cross-sectional shape is different than the first cross-sectional shape
• wherein, after formation of the suture, the first portion defines one or more first measurable characteristics indicating that the first portion reached the first temperature during formation of the suture without reaching the second temperature during formation of the suture, wherein, after formation of the suture, the second portion defines one or more second measurable characteristics indicating that the second portion was heated to the second temperature during formation of the suture.