Assos designed the Assosoires GT Long-Sleeve Mid Layer Top for our fall and winter rides where we want to keep our core warm and the cold at bay. It's a functional baselayer that works to keep us moving in chilly conditions, and we like that it offers enough stretch for full freedom of movement....

An exceptionally light base layer that manages moisture and controls odor beneath second-skin cold-weather layers or as a standalone top during indoor training.

When the riding plans and the outside weather can't agree that a long-sleeve winter jersey will be sufficient, the Assos Winter Long-Sleeve Skin Layer may be the ideal. The insulating layer easily fits under a heavier winter jacket to manage more than a few hours of base mile training....

The Equipe RS Winter Mid Layer continues Assos's pedigree of kitting cyclists for the harshest conditions. Made from their thickest OSMOS fabric, a brushed-back fleece, this long sleeve keeps heat close to the skin to warm against the bitter cold. The race fit and raw-hem design layer easily...

We want our baselayers to disappear under our outer layers, and the ASSOS GTO Spring Fall Long-Sleeve DermaSensor Baselayer does just that. The seamless, compression fabric not only provides a bulk-free, friction-free layer, but it also wicks away sweat to keep us dry and warm on cooler days.

When indoor rides on the trainer get too monotonous, we throw on the ASSOS GTO Winter Long-Sleeve DermaSensor Baselayer and head out the door. This ultra-warm baselayer features a seamless, 3D jacquard knit construction for extreme breathability and softness while added insulation and an...

When hot cocoa and watching spring classics or early season cyclocross pull you back into the warmth of the house, the mid-weight Spring/Fall Long-Sleeve Skin Layer from Assos provides essential protection to brave chilly conditions. Thin enough to fit under a thermal jersey or cycling jacket,...

We like wearing the Assos Men's Summer Long-Sleeve Skin Layer by itself when summer's at its hottest, and the rest of the warmer seasons with a jersey. This baselayer is effective at managing moisture and blocking sun rays.

Wicking sweat in summer helps keep you cooler, however, in winter it's all about keeping your skin warm and dry. Assos' Ultraz Winter Long-Sleeve Skin-Layer works in tandem with your outer layers to wick sweat away from your body to avoid becoming saturated and cold when cycling in winter months....

With a high collar and sleeves that cover the entire wrist, the Castelli Bandito Wool Long-Sleeve Baselayer has you covered for riding in cold weather. With the superior warmth of Merino wool and the excellent moisture-wicking properties of recycled polyester, you are sure to feel warm, protected...