What is heavyweight apparel?

Heavyweight describes the weight of a fabric, commonly expressed in grams per square meter (GSM).Our signature organic cotton single jersey is 420 GSM, approximately twice the fabric weight of a typical 200–220 GSM jersey.Fabric weight influences body, drape and perceived substance, but it is only one consideration in determining overall garment quality.

What is the difference between single jersey and French terry?

Our 420 GSM single jersey is a substantial knitted fabric developed for T-shirts and Henleys. Our 420 GSM French terry has a dense jersey-knit face and an integral loopback reverse, making it suitable for sweatshirts, hoodies, and sweat bottoms. Both belong to our heavyweight clothing range, but they are different fabric constructions.

Which collection should I choose?

SIGNAL. Defined by Contrast.Black and white heavyweight jersey tops with raised contrast embroidery.VOID. Luxury Through Restraint.Tonal heavyweight essentials, from T-shirts and hoodies to sweatpants and shorts.STRATA. Inspired by Material.Earth-inspired colours, washed jersey surfaces and independently developed cargo trousers and track jackets.Explore Collections →

Is everything made from organic cotton jersey?

No.Our core heavyweight jersey range uses 420 GSM organic cotton single jersey & French Terry.Cargo trousers and zip-up track jackets are independently developed using materials and construction appropriate to their designs.Refer to each product page for its specific fabric composition and care information.

What are your shipping and returns terms?

We ship to selected destinations worldwide.Orders are typically prepared within 1–3 business days. Delivery times vary by destination and shipping service.Eligible returns must be requested within 16 days of delivery, subject to our Returns & Exchanges Policy.Kindly check Shipping & Delivery · Returns & Exchanges

Curated REALLY COOL contemporary essentials apparel display featuring heavyweight jerseys, a black hoodie, a black and brown track jacket, white garments and burnt umber cargo trousers in a warm-toned fashion studio.

REALLY COOL®

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Shop Heavyweight Clothing & Contemporary Essentials.

420 GSM organic cotton jersey and French Terry essentials, plus designer woven cargo trousers and track jackets.

Three collections.

Twelve garment categories.

Different expressions of everyday clothing, never ordinary.

Shop Your Favorite Clothing by Product Type.

Familiar yet distinctive.

Browse the full REALLY COOL® wardrobe. Filter by collection, product type, or fabric to find the fit, color, and finish that work for you.

Not sure where to start? Use the Size & Fit Guide, or see how the fabrics differ on The Tactile Paradox.

The REALLY COOL® Wardrobe.

Built Around Jersey. Designed Beyond It.

Our signature 420 GSM organic cotton single jersey and French Terry form the foundation of a contemporary wardrobe. Beyond jersey, designer cargo trousers and zip-up track jackets bring independently developed materials and design details into the range.

Find Your REALLY COOL® Fit →

420 GSM Heavyweight Organic Cotton Jersey T-Shirts & Henleys

Our heavyweight T-shirts and Henleys are crafted from 420 GSM organic cotton single jersey, developed to give familiar silhouettes greater substance, shape, and presence.

Three-quarter product view of a dark earth REALLY COOL STRATA 420 GSM heavyweight T-shirt with a washed brown surface, dropped shoulders and contrasting white chest embroidery.

Heavyweight T-Shirts

Discover 420 GSM organic cotton T-shirts in two distinct fit families: Architectural Boxy and Full-Length Oversized Relaxed. Four signature series offer different approaches to construction, texture, and finishing.

Available in:

SIGNAL, VOID, STRATA
MX Signature, BX Armor, EX Essential, WX Core

Three-quarter product view of a white REALLY COOL VOID 420 GSM heavyweight long-sleeve T-shirt with relaxed shoulders, straight sleeve openings and subtle tonal chest embroidery.

Heavyweight Long-Sleeve T-Shirts

The substance of our heavyweight single jersey, extended into a long-sleeve silhouette. Structured boxy proportions, clean sleeve openings, and considered details make these T-shirts a versatile choice for everyday layering.

Available in:

SIGNAL, VOID, STRATA
MX Signature, BX Armor

Three-quarter product view of a white REALLY COOL SIGNAL 420 GSM heavyweight long-sleeve Henley with a three-button neckline, dropped shoulders and contrasting black chest embroidery.

Heavyweight Long-Sleeve Henleys

A familiar three-button Henley, reworked in substantial 420 GSM organic cotton jersey. Defined by a clean neckline, architectural proportions, and a choice of ribbed cuffs (MX Signature) or clean open cuffs (BX Armor) for a refined everyday look.

Available in:

SIGNAL, VOID, STRATA
MX Signature, BX Armor

420 GSM Organic Cotton French Terry Sweatshirts & Hoodies

Our heavyweight sweatshirts and hoodies use 420 GSM organic cotton 3-end French terry, combining a dense jersey-knit face with an integral, unbrushed loopback interior.

Three-quarter product view of a black REALLY COOL SIGNAL 420 GSM heavyweight crewneck sweatshirt with dropped shoulders, ribbed cuffs and contrasting white chest embroidery.

Heavyweight Crewneck Sweatshirts

A timeless crewneck developed with a substantial French terry body, dropped shoulders, set-in sleeves, and ribbed finishing. Designed for a structured silhouette with comfortable everyday movement.

Available in:

SIGNAL, VOID, STRATA
MX Signature, BX Armor

Three-quarter product view of a black REALLY COOL SIGNAL 420 GSM heavyweight raglan crewneck sweatshirt with curved shoulder seams, ribbed cuffs and white chest embroidery.

Heavyweight Raglan Crewneck Sweatshirts

Our heavyweight raglan sweatshirts feature diagonal sleeve construction extending from the neckline to the underarm. A distinct shoulder profile brings another expression of proportion to our French terry essentials.

Available in:

SIGNAL, VOID, STRATA
MX Signature, BX Armor

Three-quarter product view of a black REALLY COOL VOID 420 GSM heavyweight pullover hoodie with tonal chest embroidery, a large kangaroo pocket and ribbed cuffs and hem.

Heavyweight Pullover Hoodies

Discover heavyweight pullover hoodies with a double-layer hood, a clean drawcord-free design, and a spacious kangaroo pocket. Built from substantial French terry with an Architectural Boxy silhouette.

Available in:

SIGNAL, VOID, STRATA
MX Signature, BX Armor

Three-quarter product view of a burnt umber REALLY COOL STRATA 420 GSM heavyweight full-zip hoodie with a washed finish, drawstring hood, front pockets and white chest embroidery.

Heavyweight Full-Zip Hoodies

A substantial everyday layer with a full-length zipper, adjustable hood drawcords, and front pockets. The 420 GSM French terry body offers a defined silhouette designed for easy layering.

Available in:

SIGNAL, VOID, STRATA
MX Signature, BX Armor

420 GSM Organic Cotton French Terry Sweatpants & Shorts

Explore VOID heavyweight bottoms crafted from 420 GSM organic cotton French terry. Clean hems, tonal details, and distinct leg proportions offer different ways to build an everyday wardrobe.

Three-quarter product view of black REALLY COOL VOID straight-leg 420 GSM heavyweight sweatpants with an elastic waistband, relaxed full-length legs and subtle tonal embroidery.

Heavyweight Straight-Leg Sweatpants

A relaxed straight-leg silhouette with a clean line from thigh to hem. Featuring an elastic waistband with concealed drawcord, three pockets and open hems, these heavyweight sweatpants balance comfort with considered proportions.

Available in:

VOID
MX Signature, BX Armor

Three-quarter product view of white REALLY COOL VOID wide-leg 420 gsm heavyweight sweatpants with an elastic waistband, roomy full-length legs and tonal thigh embroidery.

Heavyweight Wide-Leg Sweatpants

Our heavyweight wide-leg sweatpants are shaped for greater volume from the upper leg through the open hem. Substantial French terry creates a naturally draped silhouette with room to move.

Available in:

VOID
MX Signature, BX Armor

Heavyweight Sweat Shorts

Relaxed heavyweight sweat shorts with clean open hems, functional pockets, and an easy silhouette that sits just above the knee. A warmer-weather expression of our signature French terry essentials.

Available in:

VOID
MX Signature, BX Armor

STRATA Designer Clothing & Woven Pieces

Beyond our 420 GSM knitted essentials, STRATA introduces independently developed designer clothing in compact woven cotton twill. Each style has its own fabric weight, pattern, and construction.

Panelled Cargo Trousers

Discover STRATA designer cargo trousers in 340 GSM non-stretch cotton twill with a washed STRATA surface, a relaxed straight-leg silhouette, paneled construction, and eight functional pockets. Utility details meet a refined, material-led design.

Available in:

STRATA

Three-quarter product view of a REALLY COOL STRATA zip-up track jacket with black and burnt umber panels, a stand collar and contrasting dashed seam details.

Curved-Panel Zip-Up Track Jacket

Explore STRATA designer track jackets crafted from 300 GSM woven cotton twill. Curved contrast panels, real white dashed stitching, a stand collar and black zipper hardware, with a full lining and no padding, create a distinctive contemporary outer layer.

Available in:

STRATA

About Our Shop

We create contemporary apparel built around our signature heavyweight single jersey and French Terry.The range includes T-shirts, long-sleeve T-shirts, Henleys, crewneck sweatshirts, raglan crewnecks, pullover hoodies, full-zip hoodies, straight-leg and wide-leg sweatpants, and sweat shorts.Beyond jersey, our STRATA Collection includes independently developed cargo trousers and zip-up track jackets.

Our four signature T-shirt series express different approaches to silhouette, construction and surface finishing.MX Signature and BX Armor use the Architectural Boxy pattern. MX introduces Triple Carbon Peach finishing, while BX retains the unbrushed jersey surface.EX Essential and WX Core use the longer, roomier Full-Length Oversized Relaxed pattern. EX features a refined ribbed-knit hem, while WX uses a clean folded hem.Other jersey categories follow their designated series configurations. Cargo trousers and track jackets are independent designs.Each product page identifies the series, fit and construction applicable to that garment.

Start with the size and fit information on the product page.Our signature heavyweight T-shirts use two distinct patterns: Architectural Boxy and Full-Length Oversized Relaxed.For the core T-shirt sizing system, Size M corresponds to a recommended body chest range of approximately 112–122 cm (44–48 in).Other garment categories have their own measurements and fit requirements.Explore Size & Fit Guide →