Heartbreak Hill Tee Size:M Refined CloudTec® Phase cushioning for

Refined CloudTec® Phase cushioning for a smoother ride

so you can run fast without anything getting in the way

a silky-smooth heel liner and integrated tongue system

The new full-length plate material is lighter and more responsive than the previous version while adding durability

Two cushioned chambers within the Air unit add even more stability and spring

Heartbreak Hill Tee Size:M Refined CloudTec® Phase cushioning forThe shirt that celebrates the iconic location of our namesake and flagship location. Working the floor during the Boston Marathon season year after year, co founder Dan Fitzgerald heard many customers ask, "Do you have anything that says 'Heartbreak Hill' on it?" This shirt is the answer to that regular request. It has the stats of the hill (grade, ascent, mileage, & marker on course) and our brand identity. Product Details: 100% ringspun cotton