A size guide for Helly Hansen Buoyancy Aids including the very popular Rider Vest
| Universal Size | Wearers Weight | Wearers Chest |
| 2XS | 30-40kg | 65-80cm |
| XS | 40-50kg | 70-85cm |
| S | 50-60kg | 80-95cm |
| M | 60-70kg | 85-105cm |
| L | 70-90kg | 95-115cm |
| XL | 90+kg | 105-130cm |
A size guide for Helly Hansen Buoyancy Aids including the very popular Rider Vest
| Universal Size | Wearers Weight | Wearers Chest |
| 2XS | 30-40kg | 65-80cm |
| XS | 40-50kg | 70-85cm |
| S | 50-60kg | 80-95cm |
| M | 60-70kg | 85-105cm |
| L | 70-90kg | 95-115cm |
| XL | 90+kg | 105-130cm |