Size | Chest Band Range | Baby’s weight | Model No. Without Booties | Model No. With Booties |
XX-Small | 250 – 370mm | < 6lbs | T871200 | T871600 |
X-Small | 320 – 430mm | 6 – 7lbs | T871201 | T871601 |
Small | 380 – 500mm | >7lbs | T871202 | T871602 |
Medium | 440 – 560mm | >10lbs | T871203 | T871603 |
Large | 510 – 620mm | Over 2 – 3 months | T871204 | T871604 |