The GABBA jersey is an extremely comfortable piece to add to your cross or winter kit. This level of comfort and fit are not usually found in a waterproof garment. I will be using this to train outside in the Portland rain, and again as a base layer under my team kit next fall when Cyclocross season returns. Alone, it requires no extra layers for warmth, and still allows enough heat and vapor out to keep you comfortable. I'm pairing it with the Nanoflex arm warmer to finish the waterproof wardrobe I'll be wearing this winter.