For example, if your child's waist is 60cm, they would roughly fit into the FIRST Australian size 8-10, UK size 10-11, USA size 8. If the child is larger than size AUS 14-16, we recommend going into our women's range. The next size up from AUS Youth 14-16 would be the Women's AUS size 10-12.

Size (AUS)	UK (yrs)	USA	Waist (in)	Waist (cm)
6/8	8-9	6	23"	57-59
8/10	10-11	8	24"	59-61
10/12	11-12	10	25"	61-63
12/14	12-13	12	26"	63-66
14/16	13-14	14	27"	66-69

Junior Sizing	8/10	10/12	12/14	14/16
Ladies Equivalent	N/A	4/6	6/8	8/10

CLiO Teens – Tops

Size	Height (cm)	Fits Chest (cm)
8/10	130-140	66-74
10/12	140-150	74-80
12/14	150-160	80-86
14/16	160-165	86-92

CLiO Teens – Briefs

Size	Fits Waist (cm)
8/10	60-62
10/12	62-64
12/14	64-66
14/16	66-68

H&H – Boys Underwear

Size	Waist (cm)
1-2	52-54
2-3	54-55
3-4	55-56
4-6	56-58
6-8	58-60
8-10	60-64
10-12	64-68
12-14	68-72
14-16	72-74

H&H – Boys Singlets

Size	Height (cm)	Chest (cm)	Waist (cm)
1-2	80-92	53-56	52-54
2-3	92-100	56-58	54-55
3-4	100-108	58-60	55-56
4-6	108-120	60-64	56-58
6-8	120-130	64-68	58-60
8-10	131-140	68-72	60-64
10-12	141-150	72-76	64-68
12-14	151-160	76-80	68-72
14-16	161-170	80-84	72-74

H&H – Girls Underwear

Size	Waist (cm)
1-2	52-54
2-3	54-55
3-4	55-56
4-6	56-58
6-8	58-60
8-10	60-62
10-12	62-64
12-14	64-66
14-16	66-68

H&H – Girls Singlets / Tops

Size	Height (cm)	Chest (cm)	Waist (cm)
1-2	80-92	53-56	52-54
2-3	92-100	56-58	54-55
3-4	100-108	58-60	55-56
4-6	108-120	60-64	56-58
6-8	120-130	64-68	58-60
8-10	131-140	68-74	60-62
10-12	141-150	74-80	62-64
12-14	151-160	80-86	64-66
14-16	161-170	86-92	66-68

Rivet Boys Underwear

Size	Waist (cm)
4-6	60
6-8	64
8-10	68
10-12	72
12-14	76

Tradie – Boys Singlets

Size	Height (cm)	Chest (inches)
2-3	92-100	56-58
3-4	100-108	58-60
4-6	108-120	60-64
6-8	120-130	64-68
8-10	130-140	68-74
10-12	140-150	74-80
12-14	150-160	80-86
14-16	160-165	86-92

Tradie – Boys Underwear

Size	Waist (cm)
2-3	54-55
3-4	55-56
4-6	56-58
6-8	58-60
8-10	60-64
10-12	64-68
12-14	68-72
14-16	72-76

Tradie – Girls Crops & Singlets

Size	Height (cm)	Chest (cm)
2-3	92-100	56-58
3-4	100-108	58-60
4-6	108-120	60-64
6-8	120-130	64-68
8-10	130-140	68-74
10-12	140-150	74-80
12-14	150-160	80-86
14-16	160-165	86-92

Tradie – Girls Underwear

Size	To Fit Waist (cm)
2/3	54-55
3/4	55-56
4/6	56-58
6/8	58-60
8/10	60-62
10/12	62-64
12/14	64-66
14/16	66-68

—

available on orders $1–$4,000

Online out of stock. See alternative products

Free standard delivery on orders of $99 or more* Offer ends 11/10/2026

* T&C’s apply

DELIVERY COSTS

The delivery fee for your order depends on the type of product you are purchasing (in particular, the size and weight of a product).

	Click & Collect	Click & Collect Ship to Store	Metropolitan Delivery	Rural Delivery
Standard items	FREE*	$2.99 - MarketClub Members** $3.99 - Non-MarketClub Members	$6.99 - MarketClub Members** $7.99 - Non-MarketClub Members	$9.99
Oversized items	$30	$30	$74.99	$89.99
Third Party items	Not Available	Not Available	Varies by Seller	Varies by Seller

*If your entire standard size order is available in your preferred store, we will pick and pack it for free. If one item in your order needs to be sourced from elsewhere to fulfil your order you will be charged a Ship to Store fee.
**Excludes Gift Vouchers
+ Please note, third party seller products and other online items may not be available for Click and Collect.

The delivery cost for your order is displayed in your online shopping Cart as an estimated delivery cost. This will be the lowest possible rate until you are logged in and enter your delivery address. Once we know your delivery address, the estimated cost will change to a final delivery cost in the order summary.

Find out more about our delivery costs and Click & Collect service.

Returns Policy

While the Consumer Guarantees Act and Fair Trading Act provide the basis for The Warehouse’s returns policy, we in fact go above and beyond the expectation of these two statutory laws. The Warehouse has a 60 day Money Back Guarantee with printed proof of purchase. For a product to be returned under our policy, that product must be in a resalable condition unless faulty or otherwise defective. It's this policy that provides you peace of mind while shopping at The Warehouse.

Restrictions and exceptions resulting from New Zealand Copyright laws and health and safety issues mean a refund or exchange is only available for certain products if that product is defective.

Proof of purchase is required in order to get an exchange or a refund.

Eligible third party products are covered under this policy.*

*Conditions apply.

Click here to find out more about our returns process

Product details

Due to hygiene reasons, we are unable to refund this item. The Rivet Kids' Trunks 2 Pack is designed for your adventurous little champ. Made from Cotton Elastane, they provide endless comfort all day long. These trunks offer maximum coverage and are a must-have in your kid’s wardrobe.

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Rivet Boys' Trunks 2 Pack

KIDS' UNDERWEAR SIZE GUIDE

Returns Policy

Product details