The biggest cost of making a cycling jersey is the fabric. Less expensive jerseys use simpler fabrics, so they may or may not absorb moisture or wick sweat.
The sleeves usually have elastic at the hem to keep them in place and the back of the jersey is longer than the front to provide coverage when you’re in an aggressive riding position. … And the casual fit is often similar to a women’s tee and typically lacks the elastic in the sleeves and hem.
If temperatures range from 33 to 45 degrees and it’s dry, you can get away with a long-sleeve jersey and a thermal vest. Throw in precipitation, and you’ll need to don a few extra layers to keep your core warm.