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Primaloft® synthetic yarns for excellent warmth and moisture management. 15cm cuff.

For those days when most people ride the trainer. We use a fleece-lined GORE-TEX INFINIUM™ WINDSTOPPER® outer layer with a full Polartec® Power Stretch® inner layer to make our warmest bootie ever.

Thermoflex is luxuriously warm and stretchy in dry conditions but is not intended for wet conditions.

Our lightest and most packable wind shell that fits close to body with a stretch breathable back. It effectively blocks wind on the front without causing overheating.

An extremely light and packable wind shell that fits close to body, with stretch breathability panels, allowing you extend the temperature range of your favorite Castelli pieces.

"Less is more" is the concept behind this knicker. With quality fabrics, a soft seat pad, and reduced seam patterning, the knicker simply keeps you warm and comfortable on all but the coldest rides.

Thermoflex is luxuriously warm and stretchy in dry conditions but is not intended for wet conditions.