SIGNAL MX Signature - 420 GSM Heavyweight Boxy Long-Sleeve Henley
The SIGNAL MX Signature heavyweight boxy long-sleeve Henley reworks a familiar style in substantial 420 GSM organic cotton jersey. Its Triple Carbon Peach finish gives the fabric a soft, matte feel, while contrast tiger-head embroidery adds a distinctive visual signature.
Cut in our Architectural Boxy Fit, it offers generous room through the chest, relaxed shoulders and a straight, full-length body. The three-button Henley neckline offers an easy way to adjust the look, while ribbed cuffs give the sleeves a neat, comfortable finish.
In Black, raised white embroidery stands out against the dark jersey, complemented by Dark Espresso Brown buttons. In White, black embroidery creates a striking contrast, paired with Warm Ivory Cream buttons.
Designed to wear on its own or layered under a jacket, the SIGNAL MX Henley brings a considered balance of comfort, substantial fabric and recognizable identity to everyday dressing.
420 GSM Organic Cotton Jersey
Triple Carbon Peach Finish
Architectural Boxy Fit
Three-Button Henley Neckline
Ribbed Sleeve Cuffs
Contrast 3D Tiger-Head Embroidery
The everyday Henley, with a stronger point of view.
Pair it with denim, tailored trousers or layered outerwear, an easy essential with a distinct identity.
Feature
Details
Material Composition
100% Organic Cotton, exclusive of decoration
Organic Textile Program
GOTS-certified organic cotton jersey program
Fabric Weight
420 GSM Heavyweight Jersey
Knit Construction
High-Density Single Jersey
Yarn Configuration
16s/1 and 21s/2 Yarn System
Surface Finish
MX Triple Carbon Peach, Three-Stage Mechanical Brushing
Collection Treatment
Standard Base Finish
Silhouette / Fit
Architectural Boxy
Sleeve Construction
Full-Length Set-In Sleeves
Sleeve Openings
Refined Ribbed Wrist Cuffs
Body Hem
Standard Straight Hem, Non-Ribbed
Neckline
Reinforced Round Henley Neckline
Button Placket
Three Functional Buttons
Button Color
Dark Espresso Brown (Black) / Warm Ivory Cream (White)
Shoulder Construction
Mobilon-Reinforced Shoulder Seams
Dimensional Processing
High-Temperature Dimensional Stabilization
Stitch Construction
Three-Needle, Five-Thread Reinforcement at Specified Seams
Branding
Raised White 3D Tiger-Head Embroidery
Colorways
Black / White
Gender
Unisex
Available Sizes
XS / S / M / L / XL / 2XL
The Three-Button Henley - A Familiar Detail, Refined
A reinforced three-button neckline brings a different character to our signature heavyweight jersey.
The rounded neckline sits neatly when buttoned and opens naturally for a more relaxed look. Dark Espresso Brown buttons complement the black Henley, while Warm Ivory Cream buttons add a subtle finishing detail to the white.
Triple Carbon Peach - A Softer Kind of Heavyweight
MX Signature uses three stages of mechanical brushing to create a finely peached, matte cotton surface with a soft, suede-like touch.
The result is a substantial 420 GSM jersey that feels inviting against the skin, without losing the weight and character that define our heavyweight essentials.
SIGNAL - Contrast as Identity
SIGNAL brings a more visible expression of the REALLY COOL® identity to our heavyweight essentials.
On the black Henley, raised white tiger-head embroidery stands out against the deep cotton surface.
On the white version, black embroidery creates the reverse effect, a distinctive detail that feels graphic without overwhelming the garment.
The contrast is intentional. It gives each colorway a recognizable character while allowing the familiar Henley neckline, substantial jersey and relaxed fit to remain the focus.
Two classic colors. One clear identity.
Architectural Boxy Fit - Room Without Excess Length
A roomy chest, relaxed shoulders and straight sides give the Henley its distinctive boxy shape.
The body remains full-length rather than cropped, making it easy to wear untucked or beneath outerwear. Reinforced shoulder seams help support the intended shape through everyday wear.
Ribbed Wrist Cuffs - A Distinctive MX Detail
Unlike the clean, open sleeve finish of BX Armor, MX Signature features ribbed cuffs at the wrist.
They create a neat ending to the full-length sleeves, with a comfortable fit and a more defined finish. The body hem stays straight and unrestricted.
Together, these details bring a distinctive character to the SIGNAL MX Signature Henley, soft, substantial cotton, a relaxed boxy fit, refined ribbed cuffs and contrast embroidery that stands out with intention.
A familiar everyday piece, finished with the identity of SIGNAL.
Our 420 GSM organic cotton single jersey foundation has been evaluated through laboratory testing for dimensional stability, fabric strength, pilling resistance and colorfastness.
Performance Metric
Reported Result / Standard
Extended Wash Testing
50 wash-and-dry cycles under documented test conditions
Length Dimensional Change
Approximately −0.9%
Width Dimensional Change
Approximately −1.1%
Dimensional Test Reference
ISO 6330
Care-Label Shrinkage Specification
≤3.0% — specified acceptance limit
Bursting Strength
1,143 kPa
Bursting Test Standard
ISO 13938-1
Pilling Resistance
Grade 4–5
Pilling Test Reference
ISO 12945-2
Colorfastness
Laboratory evaluated under applicable test conditions
Colorfastness References
AATCC 8 / ISO 105-X12
Built Around Measurable Standards
Fabric weight establishes the foundation, but performance depends on more than weight alone. We evaluate our organic cotton jersey for how it responds to washing, physical stress and everyday surface wear.
These results refer to the laboratory-tested jersey samples under the documented conditions. They are shared material references, not separate finished-garment test guarantees for every STRATA colorway, brushing treatment or long-sleeve size.
For a deeper look at our materials and testing approach, explore The Tactile Paradox.
Architectural Boxy Fit - Structured, Not Cropped
The STRATA MX Signature Henley follows our established MX/BX Architectural Boxy pattern, with generous chest room, relaxed shoulder placement and a straight, full-length body.
The reinforced three-button neckline allows for different ways of wearing the Henley, while the full-length sleeves finish with comfortable ribbed cuffs.
Our sizing is intentionally generous. Size M is developed around a wearer with a body chest of approximately 112–122 cm (44–48 in), including customers who commonly wear men's XL in many US or European brands.
This is a fit reference, not a universal size conversion. We recommend comparing the finished garment measurements with a piece you already own and enjoy wearing.
Finished Garment Measurements (cm / inch)
Size
Half Chest
Body Length
Shoulder
Sleeve
XS
58 / 22.83
70 / 27.56
53 / 20.87
57 / 22.44
S
63 / 24.80
72 / 28.35
55 / 21.65
58 / 22.83
M
68 / 26.77
74 / 29.13
57 / 22.44
59 / 23.23
L
73 / 28.74
76 / 29.92
59 / 23.23
60 / 23.62
XL
78 / 30.71
78 / 30.71
61 / 24.02
61 / 24.02
2XL
83 / 32.68
80 / 31.50
63 / 24.80
62 / 24.41
For long-sleeve garments, arm length and preferred wrist coverage are especially important. Compare these measurements with a garment you already own and enjoy wearing.
See our Size & Fit Guide for more information.
Our 420 GSM heavyweight long-sleeve Henleys are available in two series: MX Signature and BX Armor.
Both share the same organic cotton jersey foundation, Architectural Boxy Fit and reinforced three-button neckline. The difference is in how the fabric feels and how the sleeves are finished.
Series
Fabric Surface
Sleeve Finish
MX Signature
Softly brushed Triple Carbon Peach
Ribbed Wrist Cuffs
BX Armor
Clean, Unbrushed Jersey
Standard Open Cuffs
MX Signature - The Tactile Expression
A softly brushed, suede-like cotton surface with ribbed cuffs for a more defined sleeve finish.
BX Armor - The Structured Jersey Expression
An unbrushed heavyweight cotton surface with straight, open sleeve endings for a simpler, more relaxed look.
Both series are available in SIGNAL, VOID and STRATA.
SIGNAL: Black and white with contrast embroidery.
VOID: Black and white with matching tonal embroidery.
STRATA: Washed Dark Earth and Burnt Umber with white contrast embroidery.
Choose MX Signature for its softly brushed feel and ribbed cuffs, or BX Armor for its original jersey texture and clean open sleeves.
Both deliver the same Architectural Boxy Fit and the versatility of a three-button Henley.
Fabric Composition
100% Organic Cotton
420 GSM High-Density Single Jersey
Exclusive of Decoration
Garment Care
Machine wash cold (maximum 30°C).
Turn the garment inside out before washing.
Wash with similar colors; wash dark colors separately.
Do not bleach.
Do not tumble dry.
Reshape gently and line dry in the shade.
If ironing is permitted by the care label, use low heat on the reverse side and avoid direct contact with the embroidery.
Handle the button placket gently during washing and ironing. Avoid excessive pulling on the buttons or applying direct heat to the embroidery and button details.
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
