The Assos Equipe RS Alleycat Shell Jacket maps three fabrics to where a rider needs them most on race day. Diamond ULTRA softshell covers the chest, shoulders, and upper back with a windproof, waterproof barrier, while breathable 575CX at the lower sleeves and an ultralight MIG panel across the stomach and lower back cut bulk and keep the AEPD 11 racing fit tight through an aggressive position. This S11 generation reorients the seams and updates every textile from the previous version, and the jacket still folds down to the size of a fist for easy stashing when conditions turn. What Our Gearhead(R) Experts Are Saying:"I've held an aero tuck in this jacket through a full block effort and the stomach panel moves with me instead of ballooning when I flatten out. My chest and shoulders stay dry through a squall without cooking me on the climb back."