Right now, the best way to save at Rounderbum is with the Prime Day sale, which gives you 30% off everything across the store. This discount across the entire store is perfect if you are looking to update your entire underwear or swimwear collection without exclusions.
For most shoppers looking for a general discount: The Prime Day: 30% Off Everything deal is your top choice. This promotion applies to all items, making it ideal for any purchase that is not already discounted more deeply. For example, on a $100 order of items at regular prices, you would save $30, bringing your total down to $70.
If you are specifically buying the H2O Padded Swim Short: The Clearance Event - 50% Off H2O Padded Swim Short offers a much larger saving. For instance, if the H2O Padded Swim Short costs $50, you would pay $25, saving $25. This deal is better than the 30% off everything if this specific item is in your cart.
For other clearance items: The Save Up to 50% on Clearance Items deal can provide significant discounts on other marked down men's underwear and swimwear. While some items may only be 20% or 30% off, you could find items at the full 50% reduction. Always compare the specific clearance price to what it would be with the 30% off everything. For example, a clearance item originally $40 marked down 40% would cost $24, a saving of $16.
To get free shipping: If your order total reaches $75 or more, you automatically qualify for Free Shipping Order Over $75. This can add to your savings, especially on larger orders where shipping costs might otherwise apply. Make sure your cart value is $75 or more if the terms require it after any discounts are applied.
For specific budget shopping: The Swimwear From $32.87 and Men's Underwear From $20 offers highlight entry prices for these product categories. These are not discounts but rather a guide to the lowest priced items available in each category.
For first time shoppers or those wanting future offers: Consider signing up for the Newsletter For Special Offers And Promotions. While it does not provide an immediate discount, it ensures you receive future promotions directly to your inbox.
Looking at our own records, Rounderbum typically offers a good range of deals. In the 12 months to October 2026, we listed 24 offers for the brand, including 22 sales and deals and 1 delivery offer. The biggest percentage code we recorded in that period was 15% off in June 2026, so the current 30% off everything sale is a very strong offer. The biggest percentage sale or deal we tracked was up to 65% off in July 2026. Our team tested 1 Rounderbum offer at checkout in the 12 months to October 2026, confirming its validity.
When choosing between these offers, your best strategy is to identify the items you want to buy first. If you are buying the H2O Padded Swim Short, the 50% off specific clearance deal will give you the largest saving. For other items, including those not on clearance, the 30% off everything is the best option. Always ensure your cart total reaches $75 for free shipping, applying any percentage discounts first to confirm the final value.