SIGNAL BX Armor - 420 GSM Heavyweight French Terry Pullover Hoodie

The main body, sleeves, outer hood and kangaroo pocket are made from organic cotton French terry. The hood features a lighter organic cotton jersey lining, while the ribbed cuffs and hem use a separate cotton/elastane blend for fit and recovery.

The 420 GSM fabric weight refers to the main French terry fabric, not the complete garment.

• 420 GSM French Terry - Substantial by Nature

This hoodie begins with our 420 GSM organic cotton French terry, developed with a dense, smooth outer surface and natural, unbrushed cotton loops on the inside.

Unlike a brushed fleece hoodie, the interior retains its knitted loopback character. The substantial fabric gives the garment body and presence while remaining comfortable for everyday wear and layering.

• Clean Unbrushed Face - The BX Armor Expression

BX Armor preserves the original knitted character of the French terry's outer surface.

Without the Triple Carbon Peach treatment used on MX Signature, the fabric retains a clean, compact face with a more direct cotton texture.

The inner cotton loops remain unbrushed, creating a natural balance between the defined exterior and the knitted loopback interior.

• SIGNAL Contrast - Defined by Difference

SIGNAL expresses our heavyweight essentials through a clean black-and-white palette and contrasting embroidery.

Black: A deep black body with raised white tiger-head embroidery. The sharp contrast brings definition to the artwork while maintaining the simplicity of the silhouette.

White: A clean white body with raised black embroidery. The dark detailing creates a distinct focal point against the softly peached cotton surface.

Both colorways retain the refined matte exterior of MX Signature, allowing contrast, fabric and shape to work together without unnecessary decoration.

• Architectural Boxy Fit - Room Without Excess

Designed around our dedicated heavyweight sweatshirt pattern, this hoodie features a generous chest, dropped shoulders and full-length set-in sleeves.

The cut is relaxed and substantial, with enough room for comfortable movement and layering. It is intentionally boxy, but not cropped or excessively oversized.

The 7 cm ribbed cuffs and bottom hem finish the silhouette without sharply tightening the wrists or waist.

• Double-Layer Hood - Clean by Design

The double-layer hood features a substantial French terry exterior and a lighter organic cotton jersey lining.

Designed without drawstrings, eyelets or visible hardware, the clean opening keeps the neckline simple and lets the fabric and silhouette take the lead.

A carefully finished hood attachment provides a neat transition from the neckline to the hood.

• Kangaroo Pocket - Everyday Function

One wide kangaroo pocket sits at the center front, with two angled hand openings connecting to a single usable pocket space.

Reinforced pocket entries and matching stitching support everyday use while keeping the front design clean and balanced.

The pocket uses the same 420 GSM French terry as the main body for a consistent appearance and feel.

• Raised Contrast Tiger-Head Embroidery - A Distinct Signature

Our signature tiger-head artwork is embroidered in raised contrast thread at the left chest.

White embroidery stands out against the black body, while black embroidery creates a strong visual definition on the white colorway.

The raised threadwork adds texture and dimension to the clean design, bringing a recognizable REALLY COOL® identity to both SIGNAL colorways.

Our 420 GSM French terry is developed around defined standards for fabric weight, wash performance, surface durability and colorfastness.

Fabric weight is only one part of a well-made hoodie.

We also consider how the fabric responds to washing, how the outer surface holds up to wear, and how the finished garment maintains its intended shape.

The hood, pocket openings, ribbed trims and embroidery are also part of our garment-level quality checks.

These figures represent the defined performance and acceptance standards for our French terry program, rather than individual measured results for every finished colorway.

For more on our approach to material quality, explore The Tactile Paradox.

• Architectural Boxy Fit

The REALLY COOL® MX Signature and BX Armor pullover hoodies share the same dedicated Architectural Boxy pattern, developed for the weight and structure of our 420 GSM French terry.

Both feature a generous chest, dropped shoulders, full-length set-in sleeves and a ribbed hem that completes the shape without excessive tapering.

The fit is intentionally roomy and substantial, but not cropped or excessively oversized.

• Size Reference

Our size M is designed for the body proportions of someone who commonly wears a men's XL in many US or European brands, while delivering the intended REALLY COOL® boxy fit.

This is a fit recommendation, not a universal size conversion. For the best fit, compare the measurements below with a hoodie you already own.

Unisex Size Guide - Recommended Body Chest

Finished Raglan Sweatshirt Measurements (cm / inch)

Measurements are taken with the garment laid flat and relaxed.

• Half Chest: Measured straight across the chest, 2.5 cm below the underarm.

• Body Length: From the high shoulder point to the finished bottom edge, including the 7 cm hem rib.

• Shoulder Width: Across the back between the shoulder and sleeve seam intersections.

• Sleeve Length: From the shoulder seam to the finished cuff edge, including the 7 cm cuff rib.

For the most reliable fit, compare these measurements with a hoodie you already enjoy wearing.

If you prefer the intended structured, roomy silhouette, choose the size that best matches your body chest measurement.

For more information, see our Size & Fit Guide for more information.

Our 420 GSM heavyweight pullover hoodies are available in two series: MX Signature and BX Armor.

Both share the same organic cotton French terry foundation, Architectural Boxy Fit, unbrushed loopback interior, drawstring-free double-layer hood and wide kangaroo pocket.

The difference lies in how the outer fabric looks and feels.

• MX Signature - The Tactile Expression

Our Triple Carbon Peach finish softens the outer face of the French terry, creating a smoother hand feel and a refined matte appearance.

The unbrushed loopback interior retains its natural knitted character.

• BX Armor - The Structured Expression

BX Armor keeps the exterior unbrushed, allowing the clean, dense knit surface to define the fabric's appearance.

It shares the same substantial 420 GSM foundation and boxy silhouette as MX Signature.

SIGNAL: High-contrast black and white designs with contrasting tiger-head embroidery.

VOID: A quieter, tonal interpretation with black-on-black or white-on-white embroidery.

STRATA: Washed, earth-inspired colors with subtle surface variation and contrasting embroidery.

The choice between MX Signature and BX Armor comes down to how you want the fabric to look and feel.

The fit remains the same.

Fabric Composition

• Main fabric: 100% Organic Cotton French Terry

• Hood lining: Organic Cotton Single Jersey

• Rib trims: 95% Organic Cotton / 5% Elastane

• Main fabric weight: 420 GSM, excluding decoration and other garment components.

Garment Care

• Machine wash cold, following the temperature and washing instructions on the garment care label.

• Turn the hoodie inside out before washing.

• Wash with similar colors. Wash dark colors separately.

• Do not bleach.

• Avoid tumble drying.

• Gently reshape and line dry in the shade.

• If ironing is permitted, use low heat on the reverse side and avoid direct contact with embroidery.

Gentle care helps preserve the washed color, natural cotton surface, and intended shape of the sweatshirt. Always follow the care instructions attached to the individual garment.

Worldwide Shipping

REALLY COOL® offers shipping to selected destinations worldwide.

Shipping methods, estimated delivery times, and applicable charges are displayed at checkout.

Orders are typically processed within 1–3 business days after confirmation.

Returns & Exchanges

Eligible return requests must be submitted within 16 days of delivery, unless otherwise required by applicable consumer protection laws.

Returned products must meet our stated return conditions, including being unworn, unused, unwashed, and returned with original tags attached.

Exchanges are subject to approval, product availability, and destination requirements.

For full details, please review:

Shipping & Delivery | Returns & Exchanges