SwimSchool Deluxe Swim Trainer Level 2 up to 50 pounds. This trainer has 3-in-1 swim aids: chin support (which is removable with velcro tab), head support and is a training aid. Level 2 - Build Swim Skills. This support vest supports and balances your child to learn pre-swimming positions: floating upright and leaning forward. Prepares them for Level 3 - Refine Swim Skills. Not recommended for children under the age of 2.