Looove this shirt. I probably
"Looove this shirt. I probably ordered a size too big, but it’s so comfortable! Nice to wear for gym or just casually."












Black
The selected option is only available for pre-order. Orders with this item will ship from .
Relaxed Fit
Light-weight
Easy Care
The Relaxed Rib Training Tee is made for easy movement and everyday wear. Crafted from lightweight Active Rib fabric, it feels breathable and comfortable without weighing you down. Cut in a relaxed fit with drop arm sleeves, it’s an effortless training tee finished with a varsity logo on the chest.
Model:Sophie - 163cm, wears XS in Tees
Returns
We hope you love your new items as much as we do! However, if you're not 100% satisfied with your purchase, we have a Returns Policy in place.
You may return full-price items for an exchange (either for the same item in a different size or a new item altogether), store credit, or a refund.
Please note that any items marked as "final sale" are not eligible for store credit or a refund, as outlined in our returns policy. However, final sale items can be exchanged for the same style and colour in a different size, subject to availability. If your desired size is unavailable, we appreciate your understanding that no return or further exchange can be processed.
Undergarments, socks and opened supplements are excluded from our returns policy and cannot be returned for hygiene reasons.
Find out more about our Returns Policy.
General Shipping Rates
Australia
New Zealand
USA, UK
Canada
Europe
All other countries
Shipping costs and delivery timeframes may vary per country, please enter your shipping address at checkout for specific rates.
Find out more about our Shipping PolicyHere our Muscle Nation, we’re committed to making your online shopping experience as seamless as possible. We know how challenging it can be to find the right size when shopping online, without trying the items on first.
That’s why we go the extra mile to provide detailed product descriptions for every piece in our collection. These descriptions include specifics about fabric, fit, and sizing to help you make an informed choice. Additionally, we share model information for extra guidance when selecting your size.
We also recognise that everyone’s body is beautifully unique, and no sizing chart can perfectly capture every shape. Think of our size guide as just that—a guide. If you’re unsure or have any questions, our friendly customer service team is always here to help. Feel free to reach out to us anytime at orders@musclenation.org . We’re here to ensure you have the best possible experience!
| Size | Waist | Hips |
|---|---|---|
| XXS / AU 4-6 | 58-63 | 90-94 |
| XS / AU 6-8 | 64-68 | 95-99 |
| S / AU 8-10 | 69-73 | 100-104 |
| M / AU 10-12 | 74-78 | 105-109 |
| L / AU 12-14 | 79-83 | 110-114 |
| XL / AU 14-16 | 84-88 | 115-119 |
| XXL / AU 16-18 | 89-93 | 120-124 |
| XXXL / AU 18-20 | 94-98 | 125-129 |
| XXXXL / AU 20-22 | 99-103 | 130-134 |
| Size | Full Length | Ankle Length | 7/8 Length |
|---|---|---|---|
| XXS / AU 4-6 | 64-66 | 59-61 | 51-53 |
| XS / AU 6-8 | 65-67 | 60-62 | 52-54 |
| S / AU 8-10 | 66-68 | 61-63 | 53-55 |
| M / AU 10-12 | 67-69 | 62-64 | 54-56 |
| L / AU 12-14 | 68-70 | 63-65 | 55-57 |
| XL / AU 14-16 | 69-71 | 64-66 | 56-58 |
| XXL / AU 16-18 | 70-72 | 65-67 | 57-59 |
| XXXL / AU 18-20 | 71-73 | 66-68 | 58-60 |
| XXXXL / AU 20-22 | 72-74 | 67-69 | 59-61 |
| Length | Inseam |
|---|---|
| Referee Shorts | 23-25 |
| Bike Shorts | 13-15 |
| Midway Shorts | 9-11 |
| Booty Shorts | 5-6 |
| Size | Waist | Hips |
|---|---|---|
| XXS / AU 4-6 | 24 | 36 |
| XS / AU 6-8 | 26 | 38 |
| S / AU 8-10 | 28 | 40 |
| M / AU 10-12 | 30 | 42 |
| L / AU 12-14 | 32 | 44 |
| XL / AU 14-16 | 34 | 46 |
| XXL / AU 16-18 | 36 | 48 |
| XXXL / AU 18-20 | 38 | 50 |
| XXXXL / AU 20-22 | 40 | 52 |
| Size | Full Length | Ankle Length | 7/8 Length |
|---|---|---|---|
| XXS / AU 4-6 | 25 | 23 | 20 |
| XS / AU 6-8 | 26 | 24 | 20 |
| S / AU 8-10 | 26 | 24 | 21 |
| M / AU 10-12 | 26 | 24 | 21 |
| L / AU 12-14 | 27 | 25 | 22 |
| XL / AU 14-16 | 27 | 25 | 22 |
| XXL / AU 16-18 | 28 | 26 | 22 |
| XXXL / AU 18-20 | 28 | 26 | 23 |
| XXXXL / AU 20-22 | 29 | 27 | 23 |
| Length | Inseam |
|---|---|
| Referee Shorts | 9 |
| Bike Shorts | 6 |
| Midway Shorts | 4 |
| Booty Shorts | 2 |
| Size | Bust | Under Bust |
|---|---|---|
| XXS / AU 4-6 | 75-79 | 65-69 |
| XS / AU 6-8 | 80-84 | 70-74 |
| S / AU 8-10 | 85-89 | 75-79 |
| M / AU 10-12 | 90-94 | 80-84 |
| L / AU 12-14 | 95-99 | 85-89 |
| XL / AU 14-16 | 100-104 | 90-94 |
| XXL / AU 16-18 | 105-109 | 95-99 |
| XXXL / AU 18-20 | 110-114 | 100-104 |
| XXXXL / AU 20-22 | 115-119 | 105-109 |
| Size | Bust | Under Bust |
|---|---|---|
| XXS / AU 4-6 | 29.5-31.5 | 25.5-37.5 |
| XS / AU 6-8 | 31.5-33.5 | 27.5-29.5 |
| S / AU 8-10 | 33.5-35.5 | 29.5-31.5 |
| M / AU 10-12 | 35.5-37.5 | 31.5-33.5 |
| L / AU 12-14 | 37.5-39.5 | 33.5-35.5 |
| XL / AU 14-16 | 39.5-41.5 | 35.5-37.5 |
| XXL / AU 16-18 | 41.5-43.5 | 37.5-39.5 |
| XXXL / AU 18-20 | 43.5-45.5 | 39.5-41.5 |
| XXXXL / AU 20-22 | 45.5-47.5 | 41.5-43.5 |
We recommend sizing your tees based on your bra size.
Our tee range features a variety of fabric weights, each with its own unique feel. We allow for slight sizing variations within tolerances to ensure that every tee offers the perfect balance of comfort and style, tailored just for you.
| Size | Chest | Hem | Length |
|---|---|---|---|
| XXS | 50 | 50 | 55.2 |
| XS | 52.5 | 52.5 | 56.5 |
| S | 55 | 55 | 57.8 |
| M | 57.5 | 57.5 | 59.1 |
| L | 60 | 60 | 60.4 |
| XL | 62.5 | 62.5 | 61.7 |
| 2XL | 65 | 65 | 63 |
| 3XL | 67.5 | 67.5 | 64.3 |
| 4XL | 70 | 70 | 65.6 |
| Size | Chest | Hem | Length |
|---|---|---|---|
| XXS | 57 | 59 | 64 |
| XS | 59.6 | 61.5 | 65 |
| S | 62 | 64 | 66 |
| M | 64.5 | 66.5 | 67 |
| L | 67 | 69 | 68 |
| XL | 69.5 | 71.5 | 69 |
| 2XL | 72 | 74 | 70 |
| 3XL | 74.5 | 76.5 | 71 |
| 4XL | 77 | 79 | 72 |
| Size | Chest | Hem | Length |
|---|---|---|---|
| XXS | 50 | 50 | 55.2 |
| XS | 52.5 | 52.5 | 56.5 |
| S | 55 | 55 | 57.8 |
| M | 57.5 | 57.5 | 59.1 |
| L | 60 | 60 | 60.4 |
| XL | 62.5 | 62.5 | 61.7 |
| 2XL | 65 | 65 | 63 |
| 3XL | 67.5 | 67.5 | 64.3 |
| 4XL | 70 | 70 | 65.6 |
| Size | Waist | Hips |
|---|---|---|
| S | 77-81 | 90-94 |
| M | 82-86 | 95-99 |
| L | 87-91 | 100-104 |
| XL | 92-96 | 105-109 |
| XXL | 97-101 | 110-114 |
| XXXL | 102-106 | 115-119 |
| XXXXL | 107-111 | 120-124 |
| Size | Waist | Hips |
|---|---|---|
| S | 31 | 36.5 |
| M | 33 | 38.5 |
| L | 35 | 40.5 |
| XL | 37 | 42.5 |
| XXL | 39 | 44.5 |
| XXXL | 41 | 46.5 |
| XXXXL | 43 | 48.5 |
| Size | Chest | Waist | Hips |
|---|---|---|---|
| S | 95-99 | 77-81 | 90-04 |
| M | 100-104 | 82-86 | 95-99 |
| L | 105-109 | 87-91 | 100-104 |
| XL | 110-114 | 92-96 | 105-109 |
| XXL | 115-119 | 97-101 | 110-114 |
| XXXL | 120-124 | 102-106 | 115-119 |
| XXXXL | 125-129 | 107-111 | 120-124 |
| Size | Chest | Waist | Hips |
|---|---|---|---|
| S | 38.5 | 31 | 36.5 |
| M | 40.5 | 33 | 38.5 |
| L | 42.5 | 35 | 40.5 |
| XL | 44.5 | 37 | 42.5 |
| XXL | 46.5 | 39 | 44.5 |
| XXXL | 48.5 | 41 | 46.5 |
| XXXXL | 50.5 | 43 | 48.5 |
| US | EU | CM |
|---|---|---|
| 6 | 37 | 24.5 |
| 7.5 | 39 | 25.5 |
| 9 | 41 | 27 |
| 10.5 | 43 | 28 |
| 12 | 45 | 29.5 |
| 13.5 | 47 | 31 |
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