What Is Sizing Like at Tammy Girl?

By Ella Blake — Senior Fashion Stylist & Founder | TellarAlways honest, unbiased, & unsponsored post

Tammy Girl runs small — often a full size smaller than you'd expect — with a youthful, slim-cut silhouette designed for a cropped, fitted Y2K aesthetic. If you're buying anything beyond a simple tee, I'd strongly recommend sizing up.

Right. Let's talk about the Tammy Girl comeback, because it's had quite the moment. I remember the original Tammy Girl from BHS as a teenager — those bubble-lettered logo tees, the denim minis, the absolute carnage of a school disco circa 2001. When I heard the brand had relaunched under Daisy Street and landed on ASOS, I had to investigate. And what I found is that, while the Y2K aesthetic is right on the money, the sizing needs a bit of a heads-up.

The Basics: Who Is Tammy Girl Now?

The original Tammy Girl was a BHS staple from the late 80s through to 2005, beloved by tweens and teens across the UK. The relaunch, which arrived via ASOS, stays true to that heritage — think butterfly prints, sparkly logo hoodies, mesh crop tops, mini skirts, and all the pink you could ever want. It's affordable, it's fun, and it's unapologetically nostalgic.

The collection is currently available through ASOS with sizes running from approximately a UK 6 up to a UK 16. One note worth flagging: the brand has been called out for its limited inclusive sizing, though they have said a fuller size range is coming. Worth watching.

So How Does Tammy Girl Actually Fit?

This is where I want to be upfront with you, because sizing here isn't totally straightforward. The cuts are designed with a youthful, slim silhouette in mind. Think short hems, cropped torsos, and pieces that hug the body. Here's what that means in practice:

Tops & crop styles – These run short in the body and slim through the shoulders. I'd say they sit about a full size small. If you're a UK 10, order the 12 and thank me later.
Mini skirts & denim – Waistbands tend to be true to size, but they're cut slim across the hips. If you carry any shape through your hips or thighs, go up. The denim in particular has very little stretch.
Dresses – These are the trickiest. The torso length is noticeably shorter than the average UK high street dress, which makes them brilliant for petite frames but tricky if you're 5'6" or above. I'd also size up here if you have any shape through the bust or hips.
Knitwear & hoodies – The logo hoodies are slightly more generous in fit, though still cropped in length. These are probably the most forgiving pieces in the range.

The honest stylist's take? If you love the aesthetic but you're not a petite frame, Tammy Girl can still absolutely work for you — you just need to buy one, possibly two, sizes up. Don't let the number put you off. I once had to order a size 14 in a brand I normally wear as a 10 because of a particularly unforgiving cut, and the result was gorgeous. It's about the fit, not the tag.

A Quick Note on Consistency

Because Tammy Girl is stocked across different online retailers (not just ASOS), sizing can vary slightly depending on where you buy. One retailer's UK 10 may not match another's. It's one of those frustrating realities of a brand that doesn't have its own standalone retail infrastructure. Always check the size guide for that specific retailer, and if you want to skip the guesswork entirely, pop your measurements into Tellar's Store Size Lookup — it'll match you to the right size in seconds.

Who Is Tammy Girl Best For?

Petite frames who struggle to find cropped pieces that don't swamp them
Anyone who loves Y2K and early-00s fashion with a modern edge
Shoppers after a budget-friendly statement piece — prices are very accessible
Nostalgic millennials who want a taste of the noughties without paying vintage prices

If you're looking for substantial, structural tailoring or anything above a UK 16, Tammy Girl probably isn't your brand right now — but it's worth watching as the range expands.

If You Love the Look But Want More Sizing Options

The Y2K revival is massive right now, and thankfully there are brilliant alternatives at every price point that offer a wider size range and more consistent fit. Here's where I'd point you:

HIGH STREET & AFFORDABLE

ASOS — Beyond stocking Tammy Girl itself, ASOS's own Y2K-inspired range is extensive, size-inclusive, and brilliantly priced. Their ASOS Design pieces are often the closest match to Tammy Girl's aesthetic in a wider fit range.
Urban Outfitters — For that indie-cool Y2K energy, Urban Outfitters nails it. Great for butterfly prints, low-rise denim, and anything with a slightly irreverent edge. Sizing tends to be more generous than Tammy Girl.
Topshop — The original queen of UK teen fashion, now living on ASOS. The Topshop archives shaped the Y2K trend we're all obsessing over, and the current range is very strong for mini skirts and going-out tops.
River Island — Consistently brilliant for trend-led, youthful dressing. Their going-out tops, printed mini dresses, and denim have been reviewed extremely well. Sizing at River Island is fairly true to UK standard.
H&M — Very affordable and surprisingly trend-forward. H&M's Y2K pieces come up more generously in size than Tammy Girl, and they offer a wide size range. The quality is consistent for the price point.
Zara — For the more grown-up version of this aesthetic — cropped, fitted, and statement-making but with slightly more polish. Zara's cut is slim, so bear that in mind, but the quality is a step up.
Mango — Mango does the Y2K-meets-Mediterranean aesthetic beautifully. Think printed mini dresses, bold knitwear, and cropped blazers. Sizing runs fairly true and the quality feels premium for the price.
New Look — Brilliant budget option for Y2K-inspired pieces, especially denim and going-out tops. New Look is one of the more inclusive high street brands for sizing and consistently delivers on trend.

PREMIUM

Sézane — The French brand that does playful femininity without being twee. Their printed blouses, vintage-inspired dresses, and knitwear are gorgeous. A natural step up from Tammy Girl's aesthetic for those wanting something more investment-worthy.
Kitri — A London-based brand known for bold prints, flattering cuts, and brilliant quality. Kitri's dresses and midi skirts are consistently praised in fashion press. Sizing is inclusive and true to UK standard.

LUXURY & DESIGNER

Ganni — The Danish label that has essentially claimed the Y2K-revival crown at designer level. Butterfly prints, sparkle, bold colour — Ganni does it all with impeccable quality. A splurge, but a worthwhile one for those key pieces.
Rotate Birger Christensen — If you want the party-girl aesthetic elevated to designer level, Rotate is your brand. Mini dresses, statement sleeves, and unapologetically bold design. Worth every penny for a special occasion.

INDEPENDENT & NICHE PICKS

Lazy Oaf — A London-based independent label that has been doing quirky, playful, Y2K-influenced fashion long before the trend went mainstream. Bold graphics, unusual colour palettes, and genuinely fun dressing. A brilliant alternative for anyone who loves Tammy Girl's personality.
House of Sunny — An independent British brand known for vibrant colours, retro silhouettes, and considered sustainability credentials. Their knit dresses and co-ords have become cult pieces. Sizing is inclusive and consistent — well worth a look.

Find Your Exact Size in Tammy Girl — In Seconds

Tammy Girl's inconsistent sizing is exactly the kind of headache Tellar.co.uk was built to solve. The UK's leading sizing tool matches your measurements to 1,500+ brands instantly — no more guessing, no more returns.

Measure once using bust, waist, and hip — or input an existing brand size
Use the Store Size Lookup tool to get your precise Tammy Girl size immediately
Works across 1,500+ brands — COS, Reiss, ASOS, Ganni, and hundreds more
Always free, no downloads, works instantly in-browser

Plus, explore the Tellar Fashion Hub — a library of free posts from our top stylists. Honest. Unbiased. Independent. Always free.

FIND MY SIZE NOW →