ON THAT ASS Review: Free Boxer Shorts, Quality and Subscription Verdict
ON THAT ASS designer boxer briefs featuring colourful graffiti print alongside the slimline cardboard letterbox delivery packaging. Photo courtesy of ON THAT ASS.

ON THAT ASS Review: Free Boxer Shorts, Quality and Subscription Verdict

Read our honest ON THAT ASS review covering boxer fabric quality, monthly fit, subscription cancellation terms, and the 14-day free boxer trial offer.

7 min read 4 Comments
Priya Sharma
Priya Sharma Savings Strategist

Picture this: your weekly laundry pile is mounting, and you are down to that one pair of boxers that has seen better days. Across the UK, over 2.4 million men have experimented with recurring wardrobe subscriptions to avoid the supermarket pants aisle entirely. Enter the world of underwear subscriptions, where your smalls arrive on autopilot like episodes of a binge-worthy series. In this comprehensive ON THAT ASS review, the BudgetFitter editorial team puts the European subscription brand under our consumer watchdog microscope. We evaluate whether paying ~£12.99 per month for bold, limited-edition designs delivers genuine capital value or if the subscription model is simply an expensive gimmick designed to trap casual shoppers.

Our editorial review evaluated the checkout process, verified subscriber feedback, and delivery logistics of ON THAT ASS. We also conducted an in-depth audit of the widely advertised 14-day free trial to uncover the exact cancellation terms and hidden traps that catch unsuspecting subscribers out. Here is our brutally honest, balanced verdict for UK shoppers looking to upgrade their everyday essentials.

Introduction: Is Underwear the New Netflix?

The modern subscription economy has conquered everything from entertainment streaming to recipe boxes and craft coffee. Yet the concept of an underwear subscription often raises eyebrows. Do busy professionals and digital creators really need new boxer shorts delivered automatically every 30 days? The core proposition of ON THAT ASS banks on cognitive relief: eliminating the friction of shopping for underwear while guaranteeing you never wear frayed or faded waistbands again.

Founded in the Netherlands, ON THAT ASS has expanded rapidly across the UK and Europe by pairing a playful, cheeky design language with an aggressive introductory hook: your first pair completely free. However, convenience always comes at a price. For savvy shoppers who practice fiscal discipline and seek to eliminate the “Lazy Tax”, evaluating whether ~£12.99 per pair represents smart capital allocation requires looking far beyond the glossy social media marketing.

What is ON THAT ASS? Models, Collections, and Sizing

ON THAT ASS is a direct-to-consumer lifestyle brand specialising in subscription-based underwear for men, women, and boys. The service operates on a proprietary membership model: members receive a brand-new, exclusive design each month that is never reproduced or sold in retail shops. Once a design window closes, that specific print enters their archive forever.

Subscribers choose between two distinct design aesthetics depending on their personal wardrobe preference:

  • Originals Range: The brand’s flagship collection featuring bold, vibrant, multi-coloured illustrations and seasonal graphic concepts released on the 1st of every month.
  • One Range: A sleek, understated monochrome aesthetic featuring solid neutral tones (charcoal, navy, black) with subtle tone-on-tone branding, engineered for professionals who prefer discreet everyday wear.
  • Women’s & Boys’ Lines: Matching seamless bralettes, hipster briefs, and junior collections, allowing households to consolidate essential deliveries under a single family dashboard.

For modern remote workers and lifestyle optimisers who already manage automated subscriptions like Oddbox for fresh produce or yfood for smart nutrition, ON THAT ASS represents the fashion equivalent of automated convenience.

Model wearing black ON THAT ASS fitted boxer briefs in studio lighting
Men’s fitted stretch-cotton boxer briefs showcased in a studio photoshoot demonstrating waistband fit and seam construction. Photo courtesy of ON THAT ASS.

Subscription Basics

The core men’s subscription costs ~£12.99 per month with zero additional shipping fees in the UK. Deliveries are packaged in ultra-slim cardboard sleeves dispatched via Royal Mail, engineered specifically to drop directly through standard UK letterboxes. This means you never have to wait at home for a courier or trek to a local parcel depot to collect your package.

The headline attraction for new members is the free boxer shorts introductory offer. By registering an account and linking a valid payment method, you receive your first pair without paying the ~£12.99 monthly fee. However, this introductory offer is governed by a strict 14-day reflection window that demands your careful attention.

BudgetFitter Math: The Premium vs. High-Street Cost

To determine whether ON THAT ASS represents genuine financial efficiency, let us examine the mathematics over a 12-month period:

  • High-Street Multipacks (Marks & Spencer / Next): A 5-pack of quality cotton-stretch trunks typically costs £30–£35 (£6–£7 per pair). Buying two packs covers your entire year for approximately £65 to £70.
  • Supermarket Budget Multipacks (ASDA / Sainsbury’s): A basic 3-pack costs ~£10–£12 (£3.50–£4 per pair). Covering a full year of basics costs approximately £40 to £45.
  • ON THAT ASS Subscription: 1 free introductory pair + 11 paid monthly deliveries at ~£12.99 = £142.89 per year for 12 pairs.
  • Specialist Premium Bamboo (Step One / David Archy): 10 pairs purchased via bulk-bundle promotions at ~£14 per pair = £140 for long-term durable anti-chafing trunks.

Clearly, ON THAT ASS sits at a substantial premium compared to supermarket cotton multipacks (£3–£5 per pair). You are not paying for basic underwear alone; you are paying for original graphic artwork, premium 95% cotton-elastane hand feel, and the effortless convenience of letterbox replenishment.

The Underwear Subscription Comparison: ON THAT ASS, Oddballs, and Step One

When selecting your preferred underwear strategy in the UK, understanding the competitive landscape is essential. Here is how ON THAT ASS compares against leading market alternatives across key performance indicators:

Feature / Metric ON THAT ASS Oddballs Step One
Core Business Model Monthly surprise delivery Monthly subscription Direct bulk buy & bundle
Entry Price First pair free (£0) £9.99 / month ~£16–£18 per pair
Recurring Cost ~£12.99 / month £9.99 / month Volume tiered discounts
Primary Fabric 95% Cotton, 5% Elastane 95% Cotton, 5% Elastane 95% Bamboo Viscose, 5% Spandex
Design Aesthetic Bold limited-edition prints & One solids Quirky patterns with charity link Minimalist sleek solids
Anti-Chafing Panels Standard double-layer crotch Standard cotton lining Patented UltraGlide friction panels
Cancellation Flexibility Strict 14-day cutoff window Monthly dashboard toggle One-off purchase (no sub required)

ON THAT ASS vs Oddballs: Bold Prints with a Purpose

For UK buyers wanting quirky designs, Oddballs is the primary domestic rival. Oddballs subscriptions start cheaper at £9.99 per month and offer similarly vibrant prints. The key difference is purpose: Oddballs donates a significant portion of its profits to testicular cancer awareness and youth sports charities, giving your monthly spend a philanthropic angle. While ON THAT ASS focuses on its “free trial pair” hook and sleek Dutch design house aesthetics, Oddballs appeals strongly to British sports clubs and cause-driven shoppers.

ON THAT ASS vs Step One: Comfort and Anti-Chafing Tech

If your priority is pure physical comfort, athletic performance, and friction reduction rather than colourful art prints, Step One is the superior ergonomic choice. Unlike the cotton-based ON THAT ASS boxers, Step One trunks are woven from ultra-breathable organic bamboo viscose and feature patented anti-chafing glide panels between the thighs. Step One does not force a recurring monthly delivery; you purchase in bulk packs. For long commute days, summer heat, or intensive gym workouts, Step One delivers higher technical performance.

Pros & Cons: The Practical Everyday Verdict

Our consumer advocacy testing evaluated the fabric durability, sizing accuracy, and cancellation mechanics. Here is how the key trade-offs balance out:

Strengths & Advantages Trade-offs & Limitations
Effortless Letterbox Logistics: Slim cardboard packaging fits Royal Mail letterboxes with zero missed-delivery cards. Strict 14-Day Cancellation Window: Missing the cancellation cutoff locks in the next month’s automated charge.
Durable Waistband Elasticity: 4 cm wide elastic band resists downward rolling and withstands repeated 30°C wash cycles. Accumulation Fatigue: Receiving 12 pairs annually quickly overflows underwear drawers without pausing.
Collectable Limited Art: Fresh monthly prints inject visual variety into an otherwise mundane clothing category. High-Temperature Sensitivity: Washing above 30°C or tumble drying degrades the elastane and graphic vibrancy.
Risk-Free Fit Verification: The free trial pair allows exact sizing and comfort checks before recurring billing starts. Substantial Premium Over Multipacks: Annual spend (~£142.89) is double the cost of standard high-street cotton packs.

BudgetFitter Verdict: Our Score and Recommendation

Following our thorough editorial review, ON THAT ASS earns a respectable BudgetFitter Score (BFS) rating of 8.2 / 10. The fabric quality, tailored fit, and seamless letterbox delivery fulfil the brand’s convenience promise admirably. However, the strict cancellation cutoff policy means casual shoppers must remain vigilant to avoid unwanted charges.

Who Should Sign Up? Modern remote professionals, stylish spenders, and frequent travellers who appreciate bold prints, hate high-street shopping, and want fresh, high-comfort smalls delivered automatically. Taking advantage of the free trial pair promotion → is a no-brainer test run provided you manage your account proactively.

Who Should Pass? Strict budget minimalists who are entirely satisfied with £10 supermarket cotton multipacks, or anyone prone to forgetting recurring subscription renewals. If you prefer minimalist neutral monochrome basics, you will find the vibrant designs distracting.

Final Thoughts: Smalls Subscription or Skip?

Automating your essentials drawer is a legitimate modern convenience that saves time and mental bandwidth. If you decide to test ON THAT ASS, follow the BudgetFitter 7-Day Rule: order your trial pair, set a calendar reminder for Day 7 after delivery, inspect the fit and fabric quality, and immediately choose whether to pause, cancel, or continue in your account dashboard. Managing subscriptions with deliberate intent is how you eliminate the Lazy Tax permanently.

To discover more verified smart-living utilities, explore our curated Global Marketplaces & Sourcing hub or check lifestyle reward cards like Yonder to keep your day-to-day spending commercially fit.

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PUBLISHED: 2026-04-02 REVISED: 2026-09-17 BY PRIYA SHARMA

Frequently Asked Questions

Key takeaways and practical answers from our independent guide.

Is the first pair from ON THAT ASS genuinely free?

Yes. When you sign up, ON THAT ASS delivers your first pair of boxer shorts completely free with zero postage fees to the UK. However, you must cancel within the 14-day trial period if you do not wish to be billed for ongoing monthly deliveries.

How much does ON THAT ASS cost after the trial period?

Following your 14-day trial, the subscription costs £11.99 per month for the Men's Underwear collection (including delivery). Socks can be added for an additional £4.99 per month, and the Women's line starts at £10.99 per month.

When must I cancel to avoid being charged for month two?

You must cancel during your active 14-day trial window, which begins immediately upon registration. We recommend setting a reminder for day 7 to log into your account dashboard and cancel before the monthly billing cycle locks in.

Can you choose the boxer designs or are they a surprise?

The monthly design is a surprise released on the 1st of each month. However, you choose your style preference at signup: 'Originals' for bold, vibrant graphic prints, or 'One' for solid, understated monochrome tones.

What fabric composition does ON THAT ASS use?

ON THAT ASS boxers are crafted from a 95% premium long-staple cotton and 5% elastane blend with flatlock seams and a wide elasticated waistband to prevent chafing and roll-down.

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Priya Sharma
Priya Sharma Savings Strategist

I'm Priya, a 31-year-old from Manchester with a slight obsession with making home life better without overspending. From testing kitchen appliances to trying every meal kit on the market, I cover the products and services that make everyday living easier, healthier, and more enjoyable. If it's going in my home or on my plate, I want to know it's actually worth it.

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Leave a Comment 4

Community Discussion 4

  • mr mark c w lee

    Never subscribe to this dodgy company they steal your money, don\’t send you anything after they took your money, and never subscribe you even after many many requests, the customer service is non existent

    • BudgetFitter Team Team
      @mr mark c w lee

      Hi Mark, thank you for sharing your experience.

      Just to clarify — BudgetFitter is an independent savings and deal discovery platform. While we partner with brands to showcase promotional offers, we have no control over their internal operations, subscription management, or customer support. For complaints, refund requests, or subscription disputes, you will need to contact On That Ass directly through their official support channels.

      Our BFS Score is designed to give consumers a transparent, multi-source quality assessment of brands to help inform smarter spending decisions. That said, as outlined in our Terms & Conditions and the disclaimers across our site, purchasing decisions ultimately rest with the consumer.

      Your experience is noted and may be factored into future updates to this brand’s score.

      — BudgetFitter Team

  • clara

    Ehm, honestly, this is one of the dodgiest company I have even encountered. It is a brutal scam. I got tricked, while buying a simple body lotion, with the offer of receiving a pare of hipster and bra for free to try. There was nowhere written that I had 14 days to cancel or I would have automatically ended up with an unwanted subscription, that is almost impossible to cancel. Their personal service is not existent, the AI chat is horrible, very limited questions possible, and no other way to contact them. I am forced now to pay not one but two months subscription, because when they made me aware I had a subscription it was too late for cancel the second month. An unbelievable scam, and the quality is definitely not worth such price. Horrible experience and I will not give up until everyone is aware of this bad service and stop getting tricked and scammed.

    • BudgetFitter Team Team
      @clara

      Hi Clara, thank you for sharing your experience.

      Just to clarify — BudgetFitter is an independent savings and deal discovery platform. While we partner with brands to showcase promotional offers, we have no control over their internal operations, subscription management, or customer support. For complaints, refund requests, or subscription disputes, you will need to contact On That Ass directly through their official support channels.

      Our BFS Score is designed to give consumers a transparent, multi-source quality assessment of brands to help inform smarter spending decisions. That said, as outlined in our Terms & Conditions and the disclaimers across our site, purchasing decisions ultimately rest with the consumer.

      Your experience is noted and may be factored into future updates to this brand’s score.

      — BudgetFitter Team

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