Automatic lifejackets up to 300N

Recreational & Coastal: If you primarily sail in moderate conditions, 300N isn’t always necessary—it becomes relevant in cold waters, during night sailing, or when heavy oilskins are regularly worn. Offshore/Deep Sea: 300N is a sensible choice for maximum buoyancy reserve, especially in waves, spray, and during prolonged exposure. Professional use: Also look for a durable outer shell (e.g., “wipe clean”), clear labeling, quick visual inspection, and readily available service kits.

300N offers more reserve if you’re wearing heavy clothing (oilskins, boots, tools, PPE if applicable), if the water is cold (cold shock), or if conditions are rough (waves, spray, prolonged time in the water). 220N may be sufficient for many coastal and cruising profiles. The decisive factors are the sailing area, season, clothing, and whether you regularly work on deck. When in doubt, the higher reserve in demanding conditions is a safety plus—provided comfort and maintenance are up to par.

For offshore and harsh conditions, a harness (D-ring) and crotch strap are highly recommended to prevent the vest from riding up in the water and to allow you to be secured to the lifeline. A sprayhood reduces the inhalation of spray and helps in rough seas, while emergency lights and reflective strips improve visibility. Those who sail alone or at night also benefit from a mounting option for AIS/PLB (depending on the system).

Check the trigger (status indicator), CO₂ cartridge (properly screwed in, not corroded), bladder integrity, and the condition of the cover/seams. Additionally: mouth valve, whistle, reflector, crotch strap/harness, and, if applicable, sprayhood/emergency light. Use only service kits that fit the model exactly (e.g., UML MK2/MK5/Elite depending on the version)—incorrect cartridges/triggers can impair function.

For many applications, automatic is the better choice because it can deploy even in the event of cold shock or unconsciousness. Those who work frequently in splashy water should ensure they use the appropriate deployment system and wear the life jacket correctly. Regardless, the following applies: Only a properly adjusted and maintained life jacket is reliable in an emergency.

Automatic vests are not “assembled,” but rather adjusted and made ready for use: Adjust the belt (tight, but not constricting), correctly adjust the crotch strap (if present), keep the harness easily accessible, and perform a visual inspection before use (indicator green, cartridge in place). For everyday life on board, it’s worth doing a quick “donning test” with oilskins to ensure mobility, comfort, and lifeline attachment are all in order.

After contact with salt/splash water, rinse with fresh water (outer shell), allow to dry thoroughly, and store in a dry, well-ventilated place. Perform regular visual inspections (shell, Velcro, indicator, cartridge, webbing). If any abnormalities are noticed or after deployment: have it professionally inspected, replace the appropriate components, and restore the vest to full operational readiness. This ensures that comfort, function, and safety are maintained for years to come.