Tailwind Bottle (Specialized Big Mouth) KOFFEE The X-Trac Knee Support provides

The X-Trac Knee Support provides compression directly on the patellar and quadriceps tendon

有冇試過跑步嘅時候，尤其是跑落山，隻腳會頂到鞋頭整到腳趾黑晒呢？又有冇試過跑跑吓隻腳橋位好攰呢？日本設計嘅 #Yamatune #蜘蛛襪

In other words

Four color beam availab: Cool White beam

Backpack-friendly and durability tested: Designed to withstand the most demanding conditions

Tailwind Bottle (Specialized Big Mouth) KOFFEE The X-Trac Knee Support providesBlow away the competition with a Tailwind logo on your bottle! How else will you tell the difference between Tailwind and water? Specialized Big Mouth Bottle The Tailwind branded Specialized Big Mouth bottle has long been the standard that all bottles are compared to. You'll appreciate the ice cube friendly top, soft on the teeth poppet and easy squeeze textured grip. Plus, it has the Tailwind logo on a cool slant to help with aerodynamics. Semi