Life Jacket vs PFD
All personal flotation devices (PFDs) are not created equal. "Life jacket" is colloquially used for all flotation devices, but Coast Guard classifications draw important distinctions that affect which is appropriate for your activity. Using the wrong type — or wearing one that doesn't fit — can mean the difference between survival and drowning in an emergency.
Coast Guard Types Explained
| Type | Buoyancy | Best For | Notes |
|---|---|---|---|
| Type I (Offshore) | 22 lbs (adult) | Open ocean, remote water | Turns unconscious wearers face-up. Bulky, restricted movement. |
| Type II (Near-Shore) | 15.5 lbs (adult) | Calm inshore water | May turn unconscious wearer face-up in calm water. |
| Type III (Flotation Aid) | 15.5 lbs (adult) | Active water sports | Most popular for kayaking, SUP, sailing. Does NOT turn unconscious wearer face-up. |
| Type IV (Throwable) | 16.5 lbs | Emergency throw device | Ring buoy or cushion. Required on powerboats but not a wearable PFD. |
| Type V (Special Use) | Variable | Specific activities (whitewater, boardsailing) | Only counts as adequate if worn at all times during use. |
By Activity
- Kayaking/SUP (recreational): Type III PFD — NRS Siren (women's), Astral Buoyancy Layla, Stohlquist Edge. Minimal bulk, paddle-friendly armholes.
- Whitewater kayaking: Type V whitewater-specific — NRS Ninja, Astral V-Eight. Front zip for quick donning, reinforced shoulders.
- Sailing/powerboating: Type II or inflatable Type V — Mustang MIT 100 inflatable. Automatic inflation if you go overboard unconscious.
- Children (under 90 lbs): Coast Guard-approved youth/child PFD with crotch strap to prevent sliding out. Stearns Puddle Jumper is the most popular.
- Paddleboarding: Type III, usually worn as a belt pack (Onyx MoveVent). Required by Coast Guard but not always enforced — belt PFDs satisfy legal requirements on flat water.
Fit & Sizing
A PFD that doesn't fit properly won't protect you. Key fit test: with the PFD buckled, grab the shoulder straps and try to lift the PFD over your head. If it lifts more than 2-3 inches above your chin, it's too large. Ensure:
- All buckles fastened and snug (2-finger test at each strap)
- Shoulder straps don't restrict arm movement for your activity
- Size matches weight range on the label, not just chest size
- Children: use crotch strap to prevent riding up in water