Resellr Intelligence — Edition #2
This Week's Strategy Briefing
The data from this week is clear: summer categories are pulling well ahead of the rest of the market. Shorts are sitting at a 51.0% sell rate with an average sold price of £8.70 and selling in just 7.4 days. Activewear is close behind at 50.0% sell rate and £7.81 average. These are not flukes. When two categories are clearing at over half of all listings in under eight days, that tells you exactly where buyer intent is sitting right now. The overall market moved 1,110 confirmed sales from 3,444 tracked listings, a 32.2% sell rate, which is healthy for late May. The category and brand data above that baseline is where your margin lives.
At the brand level, Lululemon is the standout. Eight out of twelve listings sold, a 66.7% sell rate, average sold price of £26.13, and selling in just 2.0 days. That is not just a good brand, that is one of the fastest turns in the entire dataset. Gymshark is running at the same sell rate but at a much lower price point, £7.38 average, so your margin there depends entirely on what you pay to source. Ralph Lauren is also performing strongly at 58.3% sell rate and £16.35 average, selling in 8.2 days. These three together are your core summer activewear and premium casual play right now.
Looking ahead to the last week of June and into July, the sourcing window for summer holiday clothing is opening. Families in the UK break up for summer from mid to late July depending on region, and the buying surge for holiday-ready pieces, swimwear, linen sets, cotton dresses, and lightweight trousers, tends to peak about three weeks before that. Swimwear is already at a 39.7% sell rate and £9.55 average, and that number is only going to climb. Source it now. Charity shops in towns with older demographics are pricing swimwear at £1.50 to £3.00 per piece right now because demand looks low to them. It will not stay that way.
For brands to prioritise over the next few weeks, focus on FatFace, Boden, and White Stuff for summer casual. FatFace is showing a 66.7% sell rate at £10.79 average with only nine listings tracked, which means competition on Vinted is low and buyers are still finding and purchasing. Boden is at 45.5% sell rate and £19.35 average. A Boden linen shirt or printed cotton dress sourced for £3 to £5 at a charity shop will sell for £15 to £22. That margin holds up even after postage. COS is also worth watching: 36.4% sell rate sounds modest but £24.75 average sold price means your margin is generous. A COS piece at £4 to £6 source cost is a straightforward win. Adanola is the biggest hidden gem in this week's data at 85.7% sell rate, though volume is low. If you find it, price it at £10 to £12 and it will move fast.
For sourcing logistics, car boot sales across the next three weekends are your best route into warm-weather categories at the buy prices that make this work. Sellers clearing wardrobes before holidays are pricing to shift, not to profit. Target women's summer dresses, branded activewear, and linen pieces. Facebook Marketplace bundle deals, particularly job lots from resellers clearing deadstock or personal wardrobes, are also producing good results in June for Gymshark, Adidas, and Ralph Lauren basics. Postage is worth thinking through carefully: shorts and activewear are light, so InPost at £2.99 covers most pieces comfortably. Swimwear is the same. Keep your pricing honest on these items and you will turn them quickly.
The sections below break down the hidden gem brands individually, flag what to avoid entirely, and include a full deep dive guide on the top summer sourcing plays with specific buy prices, target sell prices, and listing tactics. Work through the gem notes and the guide together before your next sourcing run.
Brand Leaderboard
| Rank | Brand | Sell Rate |
|---|---|---|
| 1 | Lululemon | 66.7% |
| 2 | Vintage | 58.3% |
| 3 | Ralph Lauren | 45.5% |
| 4 | COS | 66.7% |
| 5 | Boden | 57.1% |
| 6 | Vintage Dressing | 35.7% |
| 7 | Gymshark | 52.3% |
| 8 | adidas | 33.8% |
| 9 | ROMAN | 50.0% |
| 10 | Zara | 33.3% |
| 12 | Mango | 35.3% |
| 14 | PLT | 20.0% |
| 15 | River Island | 36.7% |
| 16 | Bershka | 30.8% |
| 17 | Joules | 38.5% |
Item Type Breakdown
See item type breakdown in the email edition.
Price Intelligence
| Bracket | Sell Rate |
|---|---|
| Under £5 | 31.0% |
| £5 – £10 | 34.2% |
| £10 – £20 | 36.2% |
| £20 – £35 | 27.3% |
| £35 – £50 | 31.8% |
| Over £50 | 15.7% |
Hidden Gems
The Avoid List
The Week in Deltas
Overall sell rate: 32.2% · Avg sold price: £? · Listings tracked: 3,444
Seasonal Early Warning
Holiday wardrobe buying surge: swimwear, linen, and resort casualwear
Based on current data trends and UK calendar
UK school summer holidays begin from around 18 July in most English regions, and buying activity for holiday clothing typically peaks on Vinted two to three weeks before families travel. Swimwear is already at a 39.7% sell rate and rising. Linen shirts, printed cotton dresses, and lightweight trousers from brands like FatFace, Boden, and White Stuff will peak sharply in the coming weeks. Source these categories now while charity shop staff are still pricing them as off-season stock.
Swimwear from mid-market brands, Boux Avenue, Monsoon, and White Stuff, source at £2 to £4
Men's and women's linen shirts and shorts from FatFace, Joules, and Boden, source at £3 to £6
Printed cotton midi dresses and beach cover-ups from Monsoon and White Stuff, source at £3 to £5
Lightweight trousers and resort-style co-ords from COS and Boden, source at £4 to £7
Sandals, espadrilles, and sun hats from Joules and FatFace, source at £2 to £4
Full holiday capsule bundles, swimwear plus cover-up plus sandals, bundle-list for £18 to £25
Listing Optimisation
Shorts listed with a flat-lay photo on a light background are selling in 7.4 days at a 51.0% sell rate. Your angle and background are doing measurable work.
Shorts are the fastest-selling category in this week's data at a 51.0% sell rate and 7.4-day average, and the listings converting fastest share a consistent visual approach: flat-lay on a clean light surface, waistband folded neatly, shot from directly above. Buyers scrolling on mobile are making decisions in under two seconds, and a clear, uncluttered image stops the scroll better than a hanger shot every time. Add the waist measurement in centimetres in the first line of your description, not just the label size, because a significant number of buyers are cross-border and all buyers want to know before asking. At an average sold price of £8.70 against an InPost cost of £2.99, your net return per piece is modest but the volume is there to make it add up fast.
Why June is the most important sourcing month of the summer
Lululemon: the fastest turning brand in the dataset
FatFace: the underrated UK holiday brand
Boden: premium margins from predictable sourcing
COS: the quiet high-margin performer
Adanola: the highest sell rate in the dataset
Ralph Lauren: the consistent mid-market performer
What to expect next week