The LED lights have constant and flash modes

S (87-92cm chest)M (93-100cm chest)L (101-108cm chest)

Hand wash only

Includes a secure pocket and a thigh tuck pocket to store gels and essentials

Women's On Core Long-T Size:M The LED lights have constantThe On Core Long T is a versatile tee that has everything you need for everyday, cool weather runs when long sleeves are a must. Wrap up and run on. The Core Long T is light and streamlined. Plus as it's made from 92% recycled polyester, you can put the planet at the heart of your run (and look good doing it too). Size Guide XS (82cm bust, 67cm waist)S (83 88cm bust, 68 73cm waist)M (89 94cm bust, 74 79cm waist)L (95 100cm bust, 80 85cm waist)