the Challenger ATR 6’s outsole delivers smooth transitions from one surface to another

our KISS Air2 seat pad and anatomic construction are brought together with an overall focus on durability

Summer weight

We've been riding our bikes on gravel since before it was a thing

Wear with a bib tight to get maximum use from the pant throughout the year

castelli prosecco tech ls m 060544 the Challenger ATR 6’s outsoleThe first goal of this base layer is to move moisture away from your skin while adding minimal insulation for those cool days when your riding intensity is high enough and your outer layers are warm enough. The areas covered by the bibtight around the waist and up the back can get hot, so we used a lightweight PrimaLoft fabric to help even out the temperature. This base layer works best when in contact with the skin, so both fabrics are very stretchy