This is Rubber Jungles long sleeve front zip vest
Features include;
2mm or 3mm neoprene body
1mm or 2mm neoprene super-stretch sleeves and gussets
Front zip for ease and option to cool off if you get warm while paddling
2 storage pockets in the front for keys or snacks
It also has a lower cut back to keep the lower back warm
Real comfortable option, the front zip provides great versatility to control over heating.