Brooks Swallow B15 Black Os water Breathability is achieved through the

Breathability is achieved through the mesh panels in the uppers and the Dynamic Airflow Spoiler (DAS)

Dryfinger II waterproof breathable insert

GLONASS and Galileo) satellite reception to track in more challenging environments than GPS alone

And in case you're curious

6 mm* Sleeved construction* No Eyelets* Presta valve* 32 holes* DT Champion - Black

Brooks Swallow B15 Black Os water Breathability is achieved through theBrooks Saddles B15 Swallow reproduces the timeless design of the daddy of all modern racing saddles, first in production in 1937. It is available in 2 versions, one featuring the original chromium plated steel metalwork and one featuring a much lighter titanium metalwork. The tensioning plate on the underside still bears the original patenting information retaining the word DEPOS, as the patent for this model was first registered in Paris. Back then