Endura womens transrib ls baselayerthe transrib long sleeve womens base layer by endura provides excellent insulation in winter combined with superior moisture management in summer for year round performance featuresmaterial 92 polyester 8 spandexcoolmax ribbed knitantibacterial finishhigh stretch supportive fit flatters all shapesathletic fitlong sleevebuyendura clothingfrom chain reaction cycles the worlds largest online bike store