Breast Pads: The Complete Australian Guide

Breast pads — also called nursing pads or breastfeeding pads — are absorbent circular pads worn inside your bra to catch leaking breast milk. Most breastfeeding mums experience some degree of milk leakage, especially in the first 6–8 weeks as supply regulates, and breast pads absorb that milk before it soaks through to your clothes.

You might notice leaking when:

• Your baby nurses on one side while the other side lets down
• You hear a baby cry — even one that isn’t yours
• You think about your baby, see a photo, or hold a piece of their clothing
• Your breasts are full between feeds
• You wake up overnight after a longer sleep stretch
• During a hot shower or warm bath

Breast pads sit discreetly inside your bra, absorb the leaking milk, and keep your clothes dry. They’re one of the simplest, most practical pieces of breastfeeding equipment — but the difference between the right breast pads and the wrong ones can be the difference between comfort and constant frustration.

Australian mums have four main breast pad categories to choose from. Understanding the differences is the first step to building a breast pad system that actually works across the full day and night.

1. Reusable bamboo breast pads

Reusable bamboo breast pads are the fastest-growing category in Australia and for good reason. They’re made from a layered construction — typically a soft bamboo viscose layer against the skin, an absorbent microfibre core in the middle, and a waterproof TPU or PUL outer layer. They’re washed and reused dozens of times, making them both cost-effective and environmentally friendly across a full breastfeeding journey.

Typical features:

• 12cm diameter (standard) or up to 14cm (larger coverage)
• 3–4 layer construction depending on absorbency level
• Flat round shape (most common) or contoured cup shape (premium)
• Machine washable, air dry
• Available at specialist retailers, Baby Bunting, Amazon AU, and increasingly Kmart

2. Disposable breast pads

Disposable breast pads are single-use pads made from an absorbent synthetic core sealed inside a thin plastic-backed shell. They’re pre-packaged, individually wrapped, and thrown away after each use. Widely stocked at Australian retailers including Chemist Warehouse, Woolworths, Coles, Priceline, and Kmart — with brands like Pigeon, Tommee Tippee, Johnson’s, and Lansinoh.

Typical features:

• Thin, slim profile (2–3 mm)
• Adhesive strip to hold in place inside the bra
• Individual hygiene wrapping
• Boxes of 30–100 pads
• Often use polymer absorbents similar to those in sanitary pads

3. Silicone breast pads

Silicone breast pads are a very different category — they don’t absorb milk, they prevent leaks by applying gentle compression to the nipple. They’re typically worn for shorter periods (e.g., a few hours) when you need a completely invisible solution under fitted clothing, at a wedding, for photography, or on a date night. They’re reusable and washable.

Silicone pads have a small niche but aren’t suitable for everyday or overnight use. They can reduce milk supply if worn too long because they stop milk from expressing into the pad — which can send the wrong signal to your body about how much milk to make.

4. Contoured breast pads

Contoured breast pads are a structural variation of reusable pads — moulded into a cone or cup shape rather than lying flat. The contoured shape hugs the curve of the breast, which means they stay in place better than flat pads — particularly when you’re lying down. This makes them the dominant premium format for overnight wear, and they’re often produced with additional layers (4-layer construction rather than 3) for longer absorbency windows.

Contoured pads are typically slightly larger (14cm rather than 12cm diameter) for greater coverage during longer wear periods. They are the structural format most reviewers recommend for overnight or heavy-flow use.

This is the point most Australian breast pad articles skip over — and it’s the single most useful thing to understand when building your breast pad collection.

The conditions your body is in during the day are completely different from the conditions at night. Your breast pad needs to match those conditions. One pad designed to do both jobs will inevitably compromise on one of them.

During the day

You’re upright. You’re wearing a bra that holds pads firmly in place. You’re changing pads every 2–4 hours as part of your normal routine — before or after feeds, during bathroom breaks. You’re wearing clothing that may be fitted, and any visible pad outline or bulk matters. You need slim, discreet, comfortable pads that don’t show through clothing.

The ideal daytime breast pad is:

• Slim profile — so it doesn’t show through fitted tops
• Standard absorbency — suited to changing every 2–4 hours
• Flat round shape — fits smoothly inside daytime bras
• Smaller to medium diameter — 12cm is the Australian standard
• Comfortable for all-day wear — no bulk, no pressure points

At night

You’re lying down — on your side, your back, or your front. Pads shift around. A flat pad can easily be displaced by movement, especially during the 6–8 hour overnight stretch if your baby sleeps longer. Your breasts are often fuller after a longer sleep gap between feeds, which means more milk volume to absorb. Your nightwear is looser, so a slightly bulkier pad doesn’t matter. And you’re not changing pads through the night — you need one pad to absorb 6–8 hours of leaking without failing.

The ideal overnight breast pad is:

• Higher absorbency — designed for longer wear without saturating
• Contoured shape — stays in place when lying down
• Larger diameter (14cm) — covers more surface area
• 4-layer construction — more absorbent core than standard day pads
• Structural integrity — doesn’t collapse or fold when compressed between breast and mattress

The core insight

A flat daytime pad will fail at night — it shifts, it leaks around the edges when you lie on your side, and it saturates before your baby wakes. A bulky overnight pad will be uncomfortable and visible under daytime clothing. The answer isn’t a compromise pad that does both jobs badly. The answer is a complete system: slim flat pads for daytime discretion, contoured larger pads for overnight leak protection.

This is how premium international brands like Kindred Bravely already approach the category in the US. It’s a gap in the Australian market — and it’s exactly how serious breastfeeding mums naturally gravitate once they’ve been through a few soaked pyjamas or a daytime pad showing through a work shirt.

The materials in your breast pads directly affect comfort, absorbency, skin health, and how long the pads last. Here’s what to look for and what to avoid.

Bamboo viscose

Bamboo viscose is the premium material for the skin-side layer of reusable pads. It’s naturally soft, breathable, antibacterial, and hypoallergenic — properties that matter enormously when your nipples are sensitive, cracked, or healing in the early weeks of breastfeeding. Bamboo also wicks moisture away from the skin rather than holding it against you, which helps prevent thrush and skin irritation.

Nella Vosk uses bamboo as the skin layer in both day and night pads because it’s the most skin-friendly option available for extended wear.

Microfibre core

The middle layer of most quality reusable pads is microfibre — a densely woven synthetic fibre that absorbs significantly more liquid than cotton. Microfibre is what gives modern reusable pads their leak-holding capacity without requiring a bulky thick pad. Higher-absorbency pads (contoured night pads especially) often use two microfibre layers rather than one.

TPU or PUL waterproof layer

The outer layer is a waterproof film — either TPU (thermoplastic polyurethane) or PUL (polyurethane laminate). Both prevent milk from seeping through to clothing. TPU is slightly more breathable; PUL is slightly cheaper and more common. Both are BPA-free and food-safe when produced to standards.

Cotton

Some reusable pads use cotton as the absorbent core rather than microfibre. Cotton is natural and soft, but significantly less absorbent than microfibre for the same pad thickness. Cotton pads are a reasonable choice for light leakers or later-stage feeding when leaking has settled, but they’re often inadequate for overnight or heavy-flow situations.

What to avoid

• Pads without a waterproof backing — milk will soak through to clothing
• Pads with heavy synthetic fragrances — irritate sensitive nipples and can transfer to baby
• Cheap disposable pads with rough plastic tops — can cause nipple damage and chafing
• Pads that stick to nipples — often disposable pads with exposed polymer layers, can cause cracking on removal

Breast pad sizing and fit

Most Australian breast pads come in a standard 12cm diameter. Some brands offer a 10cm size for smaller cup sizes (A–B) or later-stage feeders with light leaking, and some offer 14cm for larger cup sizes, heavier flow, or overnight coverage.

Getting the size right matters because:

• Too small: leaks around the edges, especially when the pad shifts
• Too large: shows through clothing, bunches inside the bra
• Wrong shape: contoured pads work better inside a shaped bra; flat pads work better in a soft wirefree bra

Sizing guide

• A–B cup: 10–12cm diameter is usually sufficient for day wear
• C–D cup: 12cm diameter is the Australian standard and suits most mums
• DD+ cup: 12–14cm diameter for adequate coverage
• Overnight (any cup size): 14cm diameter for maximum overnight coverage, regardless of usual cup size

The honest answer: it depends on how much you leak, whether you wash daily, and whether you’re using disposable or reusable pads. Here are realistic starting points for Australian mums:

If using reusable pads

• Light leaker: 5–6 pairs (10–12 pads) for rotation with daily washing
• Moderate leaker: 7–8 pairs (14–16 pads) for rotation with washing every 1–2 days
• Heavy leaker or washing every 2–3 days: 10–12 pairs (20–24 pads)
• For overnight specifically: 2–3 pairs of contoured night pads (you’re only using them for the 6–8 hour sleep stretch)

If using disposable pads

• Most mums change pads every 2–4 hours during the day
• That’s roughly 6–8 pads per day
• A box of 60 lasts about 7–10 days for typical use
• A box of 100 lasts about 12–15 days
• Over 6 months of feeding, that’s roughly 1,100–1,500 pads to landfill

The practical combination

Most experienced breastfeeding mums end up using a combination: reusable pads as their daily workhorse and disposable pads as a backup for situations where washing isn’t practical (travel, hospital bag, day out at an event). The refill economics favour a dedicated system over buying only one type.

There’s no universal answer — every body is different. But there are clear patterns most Australian mums experience:

• Weeks 1–4: Peak leaking. Your body is figuring out supply. Most mums leak heavily, change pads every 2–4 hours during the day, and soak through overnight without heavy-duty protection. This is when a day/night system matters most.
• Weeks 4–8: Supply begins regulating. Leaking usually decreases. You may still need pads continuously but change them less often.
• Months 2–6: Leaking typically settles. Some mums stop needing pads entirely. Others still leak during letdowns or overnight. You might shift to pads only at night, or only for feeds.
• Months 6–12+: Most mums who are still breastfeeding only leak occasionally. Pads become a backup rather than a constant.

Some mums leak for their entire breastfeeding journey; some stop leaking by week 6. Neither is abnormal. Plan for a full system in the early weeks and scale back as your body settles.

Reusable pads are simple to care for, but a few rules matter for keeping them absorbent long-term:

• Use a mesh laundry bag — prevents pads getting lost in the machine or tangled with clothing
• Wash on a gentle cycle at 30–40°C — hotter isn’t necessary and can damage the waterproof backing over time
• Use regular laundry detergent — unscented where possible, especially in early weeks
• Avoid fabric softener — coats the microfibre and reduces absorbency permanently
• Air dry where possible — preserves the TPU/PUL waterproof layer
• Tumble dry low only if needed — heat degrades the waterproof backing faster

A good pair of reusable breast pads with proper care lasts a full breastfeeding journey and beyond — many mums repurpose them as makeup remover pads after weaning.

Nighttime leaking is the single biggest practical breast pad challenge. Even mums who don’t leak much during the day often wake to saturated pads, wet sheets, or milk pooling in the bra cups they slept in. Here’s why — and what actually works.

Overnight leaking is typically heavier because:

• You go longer between feeds, so breasts fill more between emptying
• Prolactin (the milk-production hormone) naturally peaks at night, increasing production
• Lying down for hours means milk has time to leak through any pad that isn’t designed for long wear
• Pads shift against the mattress, opening gaps where milk can escape

The solutions that actually work:

• Use a dedicated overnight pad — contoured shape, larger diameter (14cm), 4-layer absorbency
• Wear a well-fitted nursing bra to bed — holds the pad in place when you move
• Change pads before bed if you’ve been leaking during the day — start the night with fresh pads
• Sleep on a towel or absorbent mattress protector — worth it for peace of mind in the first 6–8 weeks
• If you’re a heavy leaker, consider doubling up — two pads layered on each breast is a technique many experienced mums use in peak-leaking weeks

This pillar hubs a complete library of specialist breast pad articles. Explore the topic that matters most to your situation:

On reusable vs disposable

→ reusable breast pads: the complete Australian guide — detailed guide to the reusable category, including cost savings, materials, and care

→ reusable vs disposable breast pads: which should you choose? — honest comparison, not a one-sided push

On night-specific protection

→ night breast pads: why day pads fail at night — the overnight leaking problem explained, with practical solutions

On materials

→ bamboo breast pads: the Australian guide — why bamboo matters for comfort, skin health, and absorbency

On daytime discretion

→ how to stop breast pads showing through your clothes — fit, thickness, and clothing choices that actually work

On broader breastfeeding support

→ Breastfeeding Nutrition & Milk Supply: Evidence-Based Guide — the full breastfeeding nutrition pillar

→ 10 proven ways to increase your milk supply

→ mastering breastfeeding latch & attachment techniques — poor latch is a common contributor to oversupply and leaking

Shop breast pads and breastfeeding support

Shop the full Nella Vosk reusable breast pad range:

• → Reusable Breast Pads — Day + Night Gift Set — the hero launch set: 14 bamboo reusable breast pads (10 day + 4 contoured night) + wet/dry bag & laundry bag in a gift box
• → Bamboo Reusable Breast Pads — Day Pad Refill (10-Pack) — replacement 10-pack of slim bamboo day pads for daily rotation
• → Reusable Breast Pads Refill — Night 6-Pack — replenish without the gift packaging

→ lactation cookies collection — nutrient-dense snacks that support milk supply

→ breastfeeding hydration range — electrolyte-rich options for nursing and pumping