Frezonika Koala Silicone Sleeves for Dr. Brown Narrow Glass Bottles – 4 oz (4 Pack)

Meet Frezonika's Koala Silicone Sleeves, a soft, smile-worthy way to protect your narrow glass bottles while supporting calm, simple feeding moments. The four beige sleeves are designed for Dr. Brown narrow-neck glass bottles in 4 oz (120 mL) and 8 oz sizes, delivering a snug, secure fit without altering your bottle’s original silhouette.

Key fit and compatibility

These sleeves are crafted specifically for narrow-neck Dr. Brown bottles and are not compatible with wide-neck models. Each sleeve slips over the bottle to stay in place during feeding and handling, helping you manage busy mealtimes with less fuss.

Insulation and warmth

The soft silicone provides gentle insulation, helping maintain warmth for a little longer between sips. This can be handy when you’re juggling feedings with a sleepy or distracted baby, or when you’re nursing on the go.

Drop protection you can feel

The reinforced 5 mm base cushions minor bumps and helps soften impact if a bottle is accidentally bumped or dropped, giving you extra peace of mind during lively mornings and travel.

Design that supports little hands

The adorable koala shape features built-in loop handles to encourage independent bottle holding, while the sleeve adds grip and a friendly, child-friendly look.

Visibility and ease of care

Smart side cutouts let you check milk levels at a glance without removing the sleeve. The sleeves are BPA-free and dishwasher-safe for easy cleaning after feeding times.

What’s in the box

• Four beige silicone sleeves compatible with Dr. Brown narrow bottles
• Each sleeve fits 4 oz and 8 oz narrow-neck glass bottles

With Frezonika, you get a practical accessory that combines function with a gentle, kid-friendly design—adding a small touch that might help daily feeding feel a bit smoother.