The ANTA C37 series began with the original "37-degree softness" concept and has continuously evolved to enhance comfort and performance. The C37+ improved responsiveness and breathability; version 2.0 introduced a bionic midsole structure for better resilience and support. From 3.0 onward, nitrogen-infused midsole technology was adopted to boost cushioning and reduce weight. Version 4.0 combined nitrogen tech with enhanced stability for a softer ride, while 5.0 further refined nitrogen cushioning and overall comfort—positioning the C37 as a versatile, high-value running shoe ideal for both daily training and casual wear.