Interval 5" Run Shorts
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Made to go the distance. The Interval 5" Run Shorts combine an ultra-lightweight feel with technical details designed to keep you moving comfortably through every kilometre. Breathable run fabric and a perforated inner waistband help keep airflow high, while the internal liner provides added comfort and coverage. With secure storage for your phone, keys and gels, these men's running shorts are ready for everything from quick 5Ks to longer sessions.
Product Details
Product Features
- True to size - Relaxed fit
- 5" inseam
- Double waistband design with perforated elastic inner waistband
- Hidden back waistband pocket fits most smartphones
- Internal drawcord for an adjustable fit
- Internal liner for added comfort and coverage
- Invisible zippered side pockets for keys or gels
- Reflective logo on front leg
- Lightweight, breathable mesh run fabric
- 78% Nylon / 22% Elastane
- 80GSM
Model Details
Toby T
HEIGHT: 190cm (6'3")
WAIST: 86cm (34")
TOPS: L
BOTTOMS: L
HIPS: 103cm (40.5")
Shipping & Returns
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 Policy-
Aero Active Tank
Black Terrain
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Size Guide
Find your fit before you check out. Bottoms, bras and tops are body measurements, so measure yourself and match the closest range. Tees are measured laid flat, so compare them with a tee you already own. Bodies are beautifully unique, so treat this as a guide.
Still unsure? Email orders@musclenation.org and our team will help you dial it in.
How to measure
Use a soft tape measure and keep it level. Measure over bare skin or close-fitting clothing for the truest reading.
Quick fit check
Enter your measurements to get a starting size for bottoms.
Bottoms & Leggings
Body measurements for all leggings, bike shorts, joggers and bottoms. Sizing runs 2XS to 4XL with AU equivalents.
| Size | Waist cm | Hips cm |
|---|---|---|
| 2XSAU 4-6 | 58–63 | 90–94 |
| XSAU 6-8 | 64–68 | 95–99 |
| SAU 8-10 | 69–73 | 100–104 |
| MAU 10-12 | 74–78 | 105–109 |
| LAU 12-14 | 79–83 | 110–114 |
| XLAU 14-16 | 84–88 | 115–119 |
| 2XLAU 16-18 | 89–93 | 120–124 |
| 3XLAU 18-20 | 94–98 | 125–129 |
| 4XLAU 20-22 | 99–103 | 130–134 |
Inseam & Length
Inseam is the inner-leg seam length, measured on the garment. Our Aura Straight Leg Leggings come in three leg lengths, so pick the one that matches your height.
Aura Straight Leg: inside leg by length
| Size | Short cm | Regular cm | Tall cm |
|---|---|---|---|
| 2XSAU 4-6 | 78 | 84 | 91 |
| XSAU 6-8 | 78 | 84.5 | 91.5 |
| SAU 8-10 | 78 | 85 | 92 |
| MAU 10-12 | 78 | 85.5 | 92.5 |
| LAU 12-14 | 78 | 86 | 93 |
| XLAU 14-16 | 78 | 86.5 | 93.5 |
| 2XLAU 16-18 | 78 | 87 | 94 |
| 3XLAU 18-20 | 78 | 87.5 | 94.5 |
| 4XLAU 20-22 | 78 | 88 | 95 |
Short suits ~150 to 163cm (4'11" to 5'4"), Regular ~163 to 175cm (5'4" to 5'9") and Tall ~175 to 188cm (5'9" to 6'2"). Inside leg is measured flat from the crotch seam to the hem.
| Size | Full cm | Ankle cm | 7/8 cm |
|---|---|---|---|
| 2XSAU 4-6 | 64–66 | 59–61 | 51–53 |
| XSAU 6-8 | 65–67 | 60–62 | 52–54 |
| SAU 8-10 | 66–68 | 61–63 | 53–55 |
| MAU 10-12 | 67–69 | 62–64 | 54–56 |
| LAU 12-14 | 68–70 | 63–65 | 55–57 |
| XLAU 14-16 | 69–71 | 64–66 | 56–58 |
| 2XLAU 16-18 | 70–72 | 65–67 | 57–59 |
| 3XLAU 18-20 | 71–73 | 66–68 | 58–60 |
| 4XLAU 20-22 | 72–74 | 67–69 | 59–61 |
Aura Peachy Rise
The Aura Peachy range comes in two rises. The High Rise waistband sits 4cm (1.5") higher than the Mid Rise for more coverage and core support.
Choose your rise
Both rises use the same buttery Aura Peachy fabric and sculpting scrunch. The only difference is how high the waistband sits.
Shorts: Inseam
Inseam length by short style, across the size range. Use the bottoms chart above for waist & hip sizing.
| Style | Inseam cm |
|---|---|
| Referee Shorts | 23–25 |
| Bike Shorts | 13–15 |
| Midway Shorts | 9–11 |
| Run & Basketball 3" Shorts | 7.6 |
| Booty Shorts | 5–6 |
Sports Bras
Body measurements. Measure around the fullest point of the bust and directly under the bust. Between sizes in a compressive maximum support style? Size up.
| Size | Bust cm | Under bust cm |
|---|---|---|
| 2XSAU 4-6 | 75–79 | 65–69 |
| XSAU 6-8 | 80–84 | 70–74 |
| SAU 8-10 | 85–89 | 75–79 |
| MAU 10-12 | 90–94 | 80–84 |
| LAU 12-14 | 95–99 | 85–89 |
| XLAU 14-16 | 100–104 | 90–94 |
| 2XLAU 16-18 | 105–109 | 95–99 |
| 3XLAU 18-20 | 110–114 | 100–104 |
| 4XLAU 20-22 | 115–119 | 105–109 |
Tops, Tanks & Outerwear
Body measurements for tanks, crops, long sleeves, hoodies and jackets. Same sizing as our bras and bottoms. Tees have their own laid-flat measurements below.
| Size | Bust cm | Waist cm | Hips cm |
|---|---|---|---|
| 2XSAU 4-6 | 75–79 | 58–63 | 90–94 |
| XSAU 6-8 | 80–84 | 64–68 | 95–99 |
| SAU 8-10 | 85–89 | 69–73 | 100–104 |
| MAU 10-12 | 90–94 | 74–78 | 105–109 |
| LAU 12-14 | 95–99 | 79–83 | 110–114 |
| XLAU 14-16 | 100–104 | 84–88 | 115–119 |
| 2XLAU 16-18 | 105–109 | 89–93 | 120–124 |
| 3XLAU 18-20 | 110–114 | 94–98 | 125–129 |
| 4XLAU 20-22 | 115–119 | 99–103 | 130–134 |
Tees
Garment measurements, laid flat and not worn. Match them against a tee you already love. Oversized tees run a true super-oversized fit, so we don't recommend sizing up. Size down for a less oversized look.
| Size | Chest width cm | Hem width cm | Length cm |
|---|---|---|---|
| 2XS | 53.5 | 53.5 | 50 |
| XS | 56 | 56 | 51 |
| S | 58.5 | 58.5 | 52.8 |
| M | 61.5 | 61.5 | 53 |
| L | 63.5 | 63.5 | 54 |
| XL | 66 | 66 | 55 |
| 2XL | 68.5 | 68.5 | 56 |
| 3XL | 71 | 71 | 57 |
| 4XL | 73.5 | 73.5 | 58 |
| Size | Chest width cm | Hem width cm | Length cm |
|---|---|---|---|
| 2XS | 54.5 | 56.5 | 63 |
| XS | 57 | 59 | 64 |
| S | 59.5 | 61.5 | 65 |
| M | 62 | 64 | 66 |
| L | 64.5 | 66.5 | 67 |
| XL | 67 | 69 | 68 |
| 2XL | 69.5 | 71.5 | 69 |
| 3XL | 72 | 74 | 70 |
| 4XL | 74.5 | 76.5 | 71 |
| Size | Chest width cm | Hem width cm | Length cm |
|---|---|---|---|
| 2XS | 57 | 59 | 62 |
| XS | 59.6 | 61.5 | 63 |
| S | 62 | 64 | 64 |
| M | 64.5 | 66.5 | 65 |
| L | 67 | 69 | 66 |
| XL | 69.5 | 71.5 | 67 |
| 2XL | 72 | 74 | 68 |
| 3XL | 74.5 | 76.5 | 69 |
| 4XL | 77 | 79 | 70 |
How to measure
Use a soft tape measure and keep it level. Measure over bare skin or close-fitting clothing for the truest reading.
Quick fit check
Enter your measurements to get a starting size for tops & bottoms.
Bottoms
Shorts, joggers and bottoms. Body measurements, sizes S to 4XL.
| Size | Waist cm | Hips cm |
|---|---|---|
| S | 77–81 | 90–94 |
| M | 82–86 | 95–99 |
| L | 87–91 | 100–104 |
| XL | 92–96 | 105–109 |
| 2XL | 97–101 | 110–114 |
| 3XL | 102–106 | 115–119 |
| 4XL | 107–111 | 120–124 |
Denim is sized by waist in inches, so a 32 fits a 32in (81cm) waist.
Shorts: Inseam
The number in a short's name is its inseam, so the Lay Up 5" has a 5 inch inseam. Use the bottoms chart above for waist & hip sizing.
| Name | Inseam cm |
|---|---|
| 3" | 7.6 |
| 3.5" | 8.9 |
| 4" | 10.2 |
| 5" | 12.7 |
| 7" | 17.8 |
| 9" | 22.9 |
Tops
Tees, tanks, singlets and hoodies. Body measurements, sizes S to 4XL.
| Size | Chest cm | Waist cm | Hips cm |
|---|---|---|---|
| S | 95–99 | 77–81 | 90–94 |
| M | 100–104 | 82–86 | 95–99 |
| L | 105–109 | 87–91 | 100–104 |
| XL | 110–114 | 92–96 | 105–109 |
| 2XL | 115–119 | 97–101 | 110–114 |
| 3XL | 120–124 | 102–106 | 115–119 |
| 4XL | 125–129 | 107–111 | 120–124 |
Some tees and hoodies also come in XS. If you measure below the S range, take XS.
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Interval
Built for every kilometre, from quick 5Ks to longer sessions. Ultra-light mesh and a perforated inner waistband keep the air moving, and there's a secure spot for your phone, keys and gels.
Built to run
Tap a dot or a feature to see what it does.
SideDouble waistband
A perforated elastic inner waistband keeps airflow high, with an internal drawcord to adjust the fit.
Invisible zip side pockets
Hidden zips keep keys or gels secure without bounce.
Breathable mesh
Lightweight 80 GSM mesh run fabric.
Side split
Opens up your stride, with an internal liner underneath for comfort and coverage.
BackBack waistband phone pocket
Hidden in the back waistband and fits most smartphones.
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A perforated elastic inner waistband keeps airflow high, with an internal drawcord to adjust the fit.
-
Hidden zips keep keys or gels secure without bounce.
-
Lightweight 80 GSM mesh run fabric.
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Opens up your stride, with an internal liner underneath for comfort and coverage.
-
Hidden in the back waistband and fits most smartphones.
Fit and carry
Built for
Size
What you can carry
- Phone
- Back waistband pocket
- Keys
- Zip side pockets
- Gels
- Zip side pockets
Mesh Run fabric
What Interval is made from.
- Weight
- 80 GSM
- Composition
- 78% Nylon, 22% Elastane
- Construction
- Mesh shell, internal knicker or liner