Most newborn bottle sets (including NUK-style newborn kits) offer graduated nipple flow levels: Level 0 for newborns/preemies (slowest), Level 1 (slow), and Level 2 (medium).
Newborn bottle sets commonly include small and medium sizes — for example, 2 fl oz bottles up to about 10 fl oz, with intermediate sizes such as 5 fl oz and 9 fl oz often available.
Many infant bottles (including NUK-style bottles) use anti-colic features such as internal vents, vented bases, or one-way valves that balance pressure and reduce the amount of air the baby swallows during feeding.
Nipples are typically made from silicone; bottle bodies are commonly plastic — often polypropylene — which is lightweight and dishwasher-safe in many sets.
Newborn gift sets commonly include multiple bottles plus accessories such as pacifiers, extra nipples, or transition kits, depending on the set.
Options include wide-neck bottles for easier filling and cleaning and ergonomic bottle shapes designed for comfortable gripping and easier handling by small hands.
Some nipple designs use textured, skin-like surfaces, ultra-soft wide shapes, flexible spiral sections, or comfort petals to mimic the breast and promote natural latch-on for easier breast‑and‑bottle combination feeding.
Certain nipples offer adaptive flow that responds to a baby’s suction, while sets commonly include separate slow and medium flow nipple options so you can match flow to your baby’s age and feeding pace.