The JACK & JONES men's jacket "JJVBERNARD JACKET" is most likely a windbreaker with various features. Here are some details about this jacket:

1. style: The "JJVBERNARD JACKET" is probably a classic style windbreaker designed to protect against wind and light rain. It could be a short jacket that falls over the hips.

2. material: The jacket may be made of a windproof and breathable material such as polyester or a similar synthetic fabric. This material offers protection from the elements while ensuring comfort.

3. Clasp: The jacket could have a full-length zipper at the front for easy putting on and taking off. Additionally, there could be snaps or Velcro to keep the wind out.

4. Bags: There could be side pockets to safely store important items. These pockets could be secured with zippers or snaps.

5. Hood: The jacket could have an integrated hood to protect against wind and light rain if necessary. This hood could be adjustable to ensure a customized fit.

6. Fit: The fit could be regular, meaning it is neither too tight nor too loose and offers good freedom of movement.

7. Colors and design: The "JJVBERNARD JACKET" is likely to be available in different colors and could have a simple and versatile design that can be easily combined with different outfits.

Overall, the "JJVBERNARD JACKET" from JACK & JONES is a practical and stylish choice for windy or rainy days in spring or autumn.