The Signature jersey features more compression and support compared to previous years, but is less compressive fit compared to other models. Our SE is more compressive than the Signature in the sleeves, but will feel similar otherwise. The Ultralight is our most compressive and supportive fit. The Radiator Mesh jersey is similar to our Ultralight, but less compressive through the torso/stomach area given the Radiator fabric. The CONCEPT jersey is our most aerodynamic and race-fit jersey, and offers slightly less compression than the Ultralight. And the RECON Micromodal is our least compressive, fitting like a slim-cut tee shirt. All of our jerseys are intended to be a tight/tailored fit to minimize extra material. This has several benefits, including muscle support, minimal chafing, and improved breathability and wicking.