Pump Up Shorts
Marine
Description
The Pump Up Shorts are here to take your training to the next level!
Made from a breathable & durable easy care fabric, featuring an internal Muscle Nation branded elastic waistband, invisible zip front pockets & detailed Muscle Nation taping along the hem edge.
- True to size
- Internal Muscle Nation branded elastic waistband
- Internal drawcord for customisable fit
- Invisible zip front pockets
- Tonal Muscle Nation printed taping along hem edge
- Breathable, durable & easy care fabric
- 88% Polyester & 12% Elastane
- This item comes without a swing tag in support of the MN Sustainability Movement
Model: Kayla 159cm, wears size S
Easy Returns
Free AU Shipping on orders over $100
Delivery & Returns
Returns
We hope you love your new items just as much as we do! However, we have a Returns Policy in place if you're not 100% satisfied with your purchase.
You may return any full price items in exchange for a store credit. Please note, final sale items cannot be returned.
*Undergarments and socks are excluded from our returns policy & 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 PolicyShorts Size Guide

-
WAIST
Measure the full circumference at the narrowest point of the waist -
HIPS
Measure the full circumference at the widest/fullest point of the hips -
INSEAM
Measure the full length of the inner leg from crotch to ankle edge on garment.
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 |
Shorts Inseam
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 |
Shorts Inseam
Length | Inseam |
---|---|
Referee Shorts | 9 |
Bike Shorts | 6 |
Midway Shorts | 4 |
Booty Shorts | 2 |