The heavyweight Jersey is named as such due to its ability to keep your body temperature steady from temperatures ranging anywhere from 45-75 degrees F. Warmth & breathability pair nicely with its 2-way mechanical stretch, giving you freedom of movement & a comfortable ride with fluctuating weather. Materials Sfero Sfero is the undisputed double-weight champion of the cycling world! Constructed for temperatures that range anywhere from 45-75 degrees F, warmth & breathability are a given. Versatility is accented by a mechanically brushed back & 2 way mechanical stretch. Technical Specifications: 3 Rear Cargo Pockets 3/4 Length YKK Invisible Zipper Elastic at Sleeve & Waist Raglan Sleeve Sport Fit Technical Specs: 100% Polyester 210 gsm SPF 35+