mullybox's headline offer is a code that gives you 15% off a second item when you buy two selected styles. This deal works best if you're planning to purchase two items from their sports and fitness range and want to maximize your discount on the second piece.
If you're buying a single item or two at a time: The code for 15% off your second item applies when you add two styles to your cart, so you'll need to buy at least two pieces to use it. On a $100 order split between two items, you'd pay $100 for the first and $85 for the second, saving $15 total. However, mullybox also has specific products on sale at fixed prices: the Rhone 7in Commuter Short is marked down to $68.60, and the Rhone Commuter Pant Classic sits at $138. Compare these against what you'd pay with the 15% off code; if the sale prices are lower than the code would take off, buy the sale items as they stand.
If you're buying activewear or commuter clothes: The code works across mullybox's sports and fitness range as long as the styles are selected items, so it's ideal if you're stocking up on pieces like the Commuter Shorts or Pants. The Penfold Heritage Shoe Bag II is also on sale for $110 if you need a protective bag to go with your new gear.
If you want ongoing access to deals: mullybox offers Reserve Access from $99 per year, which gives you access to special deals and perks throughout the year. Reserve Member starts at $249 per quarter if you prefer a premium service with curated gear delivered each season. These memberships may work out better value if you shop with mullybox regularly, though they are separate from the immediate discounts available this week.
To pick between the offers that apply to your basket, calculate what you'd pay with the 15% off code on your second item against any matching fixed price sale, and go with whichever leaves you paying less overall. Our team tested 1 mullybox code at checkout in the 12 months to October 2026, and the 15% off code you see here was the biggest percentage discount the brand offered in that time.
