The Assos GTO Spring/Fall LS Dermasensor is a long-sleeve base layer built for the cooler shoulder seasons, when temperatures swing mid-ride and a standard base layer leaves you either clammy or cold. It's constructed from 3D jacquard warp-knit fabric, produced as a single finished garment rather than sewn panels, which gives it exceptional softness, stretch, and breathability along with added insulation for cool-weather riding. That seamless construction is the point of a Dermasensor base layer — with no stitched seams to create friction points, it sits against the skin like a second layer rather than a garment layered on top of it, and it eliminates the rubbing that can happen between skin and other equipment layers on long rides. Raw cut edges at the sleeves and waist remove the need for hems entirely, cutting bulk when layering under a jersey, jacket, or thermal shell. That raw cut also means the sleeves can be trimmed to length if you want a shorter fit without hemming. Assos cuts this base layer in their regularFit, built for comfort on long training rides and for layering underneath thermal insulation or a shell rather than worn alone. The fabric regulates moisture and resists odor while holding a warm, dry microclimate against the skin in cool conditions, which is exactly the job a spring and fall base layer needs to do. For riders who need a reliable layer for temperamental weather, when a ride might start cold and finish warm, the GTO Spring/Fall LS Dermasensor is built to work quietly underneath whatever else you're wearing.
