Hey Vishek,
Thanks for taking the time to leave such a great review about the Vectr Light Cushion Crew Socks! We're so happy to hear they kept your feet comfortable during your 15km run - no sore feet after that distance is exactly what we love to hear about! It's fantastic that you're getting that kind of performance from them.
Thanks for the helpful tip about tightening the laces a bit for the perfect fit - that's really valuable feedback for other runners. And yes, the L and R markings are there to help get that optimal fit for each foot!
Your feedback about the real-world performance during longer runs is incredibly helpful for other runners looking for reliable comfort and support.
Thanks,
Jell