Choosing size of baby sling
How to choose the right size of a baby sling?
In short: the size of a woven wrap is chosen according to the wearer's clothing size, not the age or weight of the baby. For most people the universal choice is size 6 — it allows every basic carry to be tied. If you wear EU 36 or smaller, size 5 is enough; from EU 44 upwards, size 7–8 works better. A ring sling comes in one universal length matched to your build: S, M or L — M is the most commonly chosen.
Wondering which sling size will be best for you and your little one? It is an important question, because the right length makes babywearing comfortable and safe. With the guidance below, choosing the perfect wrap becomes simple and stress-free.
Little Frog woven wraps are available in a range of lengths, from size 2 up to size 9. The most popular sizes are size 4, size 5 and size 6. The length you need depends on the type of carry you plan to use and on your build. Some carries require more fabric, others less. Size 6 is the most frequently chosen — a universal length that works in most situations. A longer wrap gives you more carry options, which is useful once you want to experiment with different babywearing styles.
Little Frog ring slings are available in three sizes: S, M and L. Size M is the most universal. If you are petite and not tall, choose size S. If you wear XL or larger, size L will be the best choice. With a ring sling, your own build is what matters. Ring slings are exceptionally comfortable and quick to put on, which makes them ideal for short outings or everyday errands.
Baby sling size chart
The tables below show which woven wrap size and which ring sling size to choose based on the wearer's clothing size. The standard size allows every carry to be tied, while the short size is enough for single-layer carries such as the Kangaroo Carry and back carries.
Women's sizes
| Women's size | EU 36 and under UK 8 / US 4 | EU 38 UK 10 / US 6 | EU 40 UK 12 / US 8 | EU 42 UK 14 / US 10 | EU 44 UK 16 / US 12 | EU 46+ UK 18+ / US 14+ |
|---|---|---|---|---|---|---|
| Standard size woven wrap — all carries | size 5/6 | size 6 | size 6 | size 6 | size 7 | size 7/8 |
| Short size woven wrap — Kangaroo Carry and back carries | size 4 | size 5 | size 5 | size 5 | size 5 | size 6 |
| Ring sling | S/M | M | M | M | M | L |
Men's sizes
| Men's size | EU 48 and under XS / UK-US 38 | EU 50 S / UK-US 40 | EU 52 M / UK-US 42 | EU 54 L / UK-US 44 | EU 56 L-XL / UK-US 46 | EU 58+ XL+ / UK-US 48+ |
|---|---|---|---|---|---|---|
| Standard size woven wrap — all carries | size 5/6 | size 6 | size 6 | size 6/7 | size 7 | size 8 |
| Short size woven wrap — Kangaroo Carry and back carries | size 4 | size 4 | size 5 | size 5 | size 5 | size 6 |
| Ring sling | S/M | M | M | M | M/L | L |
Wrap size numbering
Woven wraps follow an international size numbering system. Little Frog offers the following sizes:
- Size 2 — shortest, for quick single-layer carries
- Size 3 — short
- Size 4 — popular short size
- Size 5 — medium
- Size 6 — the most popular, universal size
- Size 7 — long
- Size 8 — extra long
- Size 9 — longest
Browse all woven baby wraps in every size and baby slings in less common sizes.
What determines the wrap size you need?
The type of carry
- Newborns: two basic carries work best — the Kangaroo Carry (needs a shorter wrap, size 4 or 5) and the Front Wrap Cross Carry (needs a longer wrap, size 6 or 7). The Kangaroo Carry offers closeness and stability, while the Front Wrap Cross Carry gives a growing baby more support.
- Sitting babies: for babies who sit unassisted we recommend the Double Hammock, which also calls for a longer wrap (size 6 or 7). It is exceptionally comfortable and provides excellent support for the child's back.
- Ring slings: a newborn can be carried in a ring sling on the front, and an older child on the hip. Ring slings are great for quick outings and easy to adjust.
Every carry is shown step by step in our baby sling instructions.
The wearer's build
- Taller and larger wearers need longer wraps, while shorter and petite wearers manage better with shorter ones.
- For the whole family: one longer wrap (for example size 6) can be shared by several caregivers, which keeps carry options flexible. It is a practical solution — a single wrap can serve mum, dad and even grandparents.
- When you fall between two values: if your size sits between two entries in the chart, choose the longer wrap. Spare fabric can always be used up, whereas a wrap that is too short simply cannot be tied.
How to choose your wrap size, step by step
- Check your clothing size. The wrap size is matched to the wearer, not to the baby. If two parents of different builds will share the wrap, choose the size for the larger one.
- Decide which carries you want to use. If you want access to every carry, including the Front Wrap Cross Carry and the Double Hammock, choose the standard size. If you only want quick single-layer carries such as the Kangaroo Carry and back carries, the short size is enough.
- Choose the type of sling. A woven wrap offers the most options and distributes weight best. A ring sling goes on in seconds and comes in size S, M or L.
- When in doubt, choose size 6. It is the universal choice for most wearers — it ties both multi-layer and shortened carries, and stays useful the longest as your baby grows.
Tips for a good start:
- Practice makes perfect: if you are new to babywearing, begin with simpler carries and work up to more complex ones.
- Seek guidance: consult a babywearing advisor or join a local babywearing group. Sharing experience is invaluable.
- Prioritise comfort: make sure the sling is comfortable for both you and your baby. A proper fit means not only comfort but also safety.
Frequently asked questions about sling size
Does the wrap size depend on the baby's age or weight?
No. The length of a woven wrap depends solely on the wearer's build and clothing size. The same wrap serves from the newborn period through to preschool age — only the way you tie it changes.
Which sling size should I start with?
For a wearer in EU 38–42 (women) or EU 50–52 (men), the best first choice is size 6. It lets you learn every basic carry, including the Front Wrap Cross Carry recommended for newborns.
Which wrap size for EU 38 or 40 (UK 10–12, US 6–8)?
Standard size: size 6. Short size, for the Kangaroo Carry and back carries only: size 5. Ring sling: size M.
Which wrap size for EU 44 or 46+ (UK 16–18+, US 12–14+)?
At EU 44 choose size 7; at EU 46 and above, size 7 or 8. Ring sling: M at EU 44 and L from EU 46 upwards.
Which wrap size for a man?
For EU 50–52 (S–M) the standard size is size 6, for EU 54 (L) — size 6 or 7, for EU 56 — size 7, and for EU 58+ — size 8.
Which ring sling size should I choose?
Little Frog ring slings come in S, M and L. Size S suits women's EU 36 and under or men's EU 48 and under, M suits women's EU 38–44 and men's EU 50–54, and L suits women's EU 46+ and men's EU 56+. Size M is the most universal.
Which sling is best for a newborn?
For a newborn, a woven wrap in size 6 works best, as it allows the Front Wrap Cross Carry. For the Kangaroo Carry, size 4 or 5 is enough. A newborn can also be carried on the front in a ring sling.
One wrap for both parents — which size?
Choose the size that fits the larger of the two. Spare fabric can be wrapped around the waist or used in a carry with more layers. A wrap that is too short cannot be tied at all.
What if my size falls between two values?
Choose the longer size. A longer wrap gives you more carry options and is more forgiving while you are learning, especially over bulkier winter clothing.
The right wrap turns babywearing into a comfortable and enjoyable experience. Find your ideal size and enjoy being close to your little one.
