Front crawl: S-stroke and and I-stroke differences - 220 Triathlon
Dad's Club Swim Team on Twitter: "On this Monday morning we bring you some technique tips from Nathan Adrian who shows you how to perfect your Freestyle/ Front Crawl Breathing. #swimhardsmileharder https://t.co/Bu006J2QVV
Freestyle Swimming Technique - Top Tips for a Faster Front Crawl