Frezonika Koala Silicone Sleeves for Dr. Brown Narrow Glass Bottles, 4 oz/120 mL, 4-Pack (Pink)

Meet Frezonika Koala Silicone Sleeves

Designed for parents who want a practical, playful accessory at feeding time, Frezonika's Koala Silicone Sleeves slip snugly over narrow Dr. Brown glass bottles. This 4-pack features cheerful pink koalas that little hands can grab, turning bottle-feeding into a more tactile, engaging moment.

Designed for your Dr. Brown Narrow Glass Bottles

These sleeves are custom-fit for narrow-neck Dr. Brown bottles in 4 oz (120 mL) and 8 oz sizes. They’re not intended for wide-neck designs, so you’ll want to check compatibility before use. The fit is snug around the glass, helping to reduce slipping during quick pauses or refills.

Keep Milk Warm, Hands Gentle

Crafted from soft silicone, the sleeve offers light insulation that can help maintain milk warmth a little longer between sips. For parents juggling night feeds or distracted toddlers, the warmth-keeping factor is a potential bonus that aligns with calm feeding moments, not a guarantee.

• Soft silicone layer provides gentle warmth without bulk.
• Fits securely on narrow bottles to support steady feeding.

Extra Drop Protection You Can Feel

A reinforced 5 mm base cushions impacts if a bottle is bumped or dropped. This sturdy bottom acts as a shield for the glass bottle, potentially reducing the chances of cracks or chips during busy mornings or travel days.

• Thickened 5 mm base adds durable protection.
• Helps minimize impact damage during everyday use.

Koala Cute, Handles for Tiny Hands

The adorable koala design isn’t just cute—it features built-in loop handles to encourage a sense of independence for babies learning to hold their bottle more confidently. It’s a small touch that can make feeding rituals feel a touch more joyful.

• Built-in loop handles aid grip for little hands.
• Cheerful pink koala motif adds a friendly vibe to feeding.

See How Much Milk Without Removing the Sleeve

Smart side cutouts let you check milk volume at a glance, so you don’t have to remove the sleeve to verify levels. The sleeve is dishwasher-safe and BPA-free, making cleaning quick and routine-friendly.

• Side view window-style cutouts for quick checks.
• Dishwasher-safe and BPA-free for easy care.

Materials, Care, and Fit

Made from BPA-free silicone. Easy to clean in the dishwasher or with a quick wipe. Specifically sized for 4 oz and 8 oz Dr. Brown narrow bottles; not compatible with wide-neck models.

• 100% silicone—soft, durable, and food-safe.
• Dishwasher-safe for simple cleanup.
• Fits narrow Dr. Brown bottles only.

What You Get

This 4-pack includes four pink Koala sleeves designed for 4 oz/120 mL bottles. They slip on easily for feeding, cleaning, or sharing with a caregiver, bringing a pop of color to your routine.