Sizing Information:
Choose a jacket size based upon what you normally buy in men’s clothing. If you want to measure yourself to help pick a size, have a look at Alpinestars’ sizing chart. And for those who may have a bit of a belly, we encourage you to consider our estimated max belly sizes listed below. Choose a jacket size that will accommodate both your chest and your belly.
| Alpha Size |
Max Chest Size (inches) |
Max Belly Size (inches) |
| Small |
38-40 |
35 |
| Medium |
40-42 |
38 |
| Large |
42-44 |
40 |
| XL |
44-46 |
42 |
| XXL |
46-48 |
44 |
| XXXL |
50-52 |
46 |
| XXXXL |
52-54 |
48 |
The B-52 jacket is a good combination of style comfort and protection. This jacket is a somewhat relaxed (for a sport cut), and the stretch panels give you an unrestricted feel when you’re moving around. Adjustable Velcro straps at the waist helps you get more of a custom fit. Perforations in the torso and running down the sleeves help keep you cool during warmer rides. A removable vest liner is also included for cooler days. The elbows and shoulders of the B-52 jacket come equipped with removable CE approved armor. The jacket also includes a foam back pad (for extra protection you can upgrade to the CE approved RC Back Protector). Reflective piping on the back of the sleeves gives the jacket extra visibility at night. Take the “View Larger Pictures” link above to see some good closeups of this jacket and its features.
