Seventy & Mochi Couture Size Guide: What Size Am I in Seventy & Mochi? Fit Advice & UK Sizing Help

Seventy + Mochi has made a name for itself with sustainable denim, heritage-inspired tailoring, and softly structured silhouettes—all rooted in ethical production and feminine, easy-to-wear shapes. From their bestselling jeans and boilersuits to versatile waistcoats and cropped jackets, their sizing can feel relaxed—but it’s not one-size-fits-all.

So, if you're wondering:

What size am I in Seventy & Mochi? Does it run big or small? You’re in the right place.

✨ Tellar.co.uk helps you find your correct size in thousands of brands, including Seventy & Mochi. You’ll receive a free tape measure, set up your profile once, and instantly get personalised, fabric-specific sizing guidance that works across categories—for life. No size charts. No stress. Always free.

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About Seventy & Mochi: Conscious Design, Cult Fit

Seventy + Mochi is celebrated for its elevated everyday denim, designed with:

• Natural fabrics including organic cotton, recycled polyester and hemp

• Relaxed fits with flattering tailoring

• Signature silhouettes like the Nelly jacket, Bowie jeans, and Chloe waistcoat

• A timeless colour palette across soft indigo, ecru, and camel tones

But while the brand embraces comfort, each style fits differently, and sizing consistency depends on fabric stretch, cut, and layering.

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Is Seventy & Mochi True to Size?

Seventy & Mochi generally runs true to size, but many pieces are designed with a relaxed fit—especially jackets, dungarees and wide-leg jeans. However, waistbands, button-fronts, and fitted bodices may still feel snug for curvier body shapes or fuller busts.

Fit Summary:

• Jeans & trousers – true to size; some feel fitted at waist

• Jackets – boxy, cropped and relaxed

• Waistcoats & tops – structured but short in length

• Dresses & jumpsuits – roomy through hip, may feel fitted at bust

• Boilersuits – oversized cut, often dropped waist

📏 Use Tellar’s Store Size Lookup to check your exact Seventy & Mochi size instantly. Tellar uses your measurements + real product data to make sizing smart, not guesswork.

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UK to Seventy & Mochi Size Conversion

🎯 Create your free Tellar profile and Tellar will automatically select your best size based on your bust, waist, hips and preferred fit—across jeans, jackets, jumpsuits and more.

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How Seventy & Mochi Fits by Category

1. Jeans & Trousers (Bowie, Phoebe, Willow)

Mid-to-high rise fits in rigid or lightly stretchy organic denim.

• Fit: True to size at waist; relaxed through leg

• Size Tip: Stick to your UK size unless curvy at the waist

• Tellar Tip: Tellar matches your waist-to-hip ratio + rise length to the specific cut

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2. Jackets (Nelly, Mabel, Hero)

Cropped, boxy, workwear-inspired styles in denim or soft cotton blends.

• Fit: Relaxed, easy to layer

• Size Tip: Stay true to size unless petite

• Tellar Tip: Shoulder width + layering preference built into Tellar’s jacket sizing

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3. Waistcoats & Vests (Chloe, Thea)

Often worn as tops or co-ords, with structured bodices and button fronts.

• Fit: Fitted at bust, cropped at waist

• Size Tip: Size up if busty or long in torso

• Tellar Tip: Tellar uses bust, torso length and shoulder to avoid gaping or pulling

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4. Dresses & Jumpsuits

Relaxed silhouettes in denim or cotton twill—designed for movement.

• Fit: Roomy at hip and leg; structured waist or bust

• Size Tip: True to size overall; may run fitted in upper body

• Tellar Tip: Tellar adjusts based on hip, waist and torso height

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5. Boilersuits & Co-Ords

Laid-back style, often oversized with cropped sleeve/leg.

• Fit: Designed to drape

• Size Tip: Stay true to size for a slouchy silhouette

• Tellar Tip: Tellar calculates shoulder, rise, and hip width to maintain proportion

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Why Seventy & Mochi Sizing Can Feel Inconsistent

The brand’s pieces are designed with ease and movement in mind, but online descriptions don’t always clarify:

• Whether the waistband has stretch

• If the cut is fitted vs oversized

• Whether the fabric is rigid (e.g. raw denim) or fluid

• How short or cropped the bodice or hemline really is

That’s why Tellar.co.uk is trusted by shoppers who want confidence in fit, fabric and flexibility—across thousands of brands.

🎁 And yes, your profile comes with a free tape measure, so you get sizing right from the start.

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Popular Seventy & Mochi Styles (and How They Fit)

⭐ Phoebe Jeans

Slim fit, mid-rise, cropped leg

• Fit: True to size at waist, slight stretch

• Tellar Tip: Waist, hip, and calf circumference matched for perfect denim fit

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⭐ Nelly Jacket

Cropped, wide sleeve, signature denim jacket

• Fit: Roomy and boxy

• Tellar Tip: Shoulder width and bust used to prevent oversized overwhelm

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⭐ Chloe Waistcoat

Cropped, buttoned, minimal stretch

• Fit: Fitted at bust and waist

• Tellar Tip: Bust and torso height ensure proper closure

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⭐ Bowie Trouser

Wide leg, high waist, front pleat

• Fit: Structured waistband, flowy leg

• Tellar Tip: Tellar matches rise and hip width to comfort + silhouette

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Related Size Guides You Might Like

• Agolde Fit Guide

• Ganni Size Guide

• Nanushka Fit Breakdown

• Reformation Fit Guide

• How to Measure for Denim and Tailoring

Browse more on the Tellar Blog or check your Seventy & Mochi size now using the Store Size Lookup.

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Final Verdict: What Size Am I in Seventy & Mochi?

Most pieces fit true to size with a relaxed feel, but rigid denim or tailored waistcoats may require sizing up—especially if you're curvy or taller.

Rather than guess, Tellar.co.uk calculates your fit by garment, cut and silhouette—across Seventy & Mochi and thousands of brands.

✅ Free tape

✅ One-time setup

✅ Fit logic tailored to you

✅ Always free

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✅ Ready to Find Your Seventy & Mochi Size?

• Create Your Free Tellar Profile

• Check Your Seventy & Mochi Size Instantly

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