Our friends over at boobydoo have teamed up with Breast Cancer Haven to help fight Breast Cancer by taking part in a 5K challenge ? To get involved, head on over to their website #ILOVEMYSPORTSBRA 
Last Updated on 16 January 2026 by the5krunner
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tfk is the founder and author of the5krunner, an independent endurance sports technology publication. With 20 years of hands-on testing of GPS watches and wearables, and competing in triathlons at an international age-group level, tfk provides in-depth expert analysis of fitness technology for serious athletes and endurance sport competitors.
