420 GSM Heavyweight French Terry Crewneck Sweatshirt | SIGNAL BX Armor
420 GSM organic cotton French terry. Architectural Boxy fit. Clean unbrushed face. Unbrushed loopback interior. Contrast embroidery.
A 420 GSM boxy crewneck sweatshirt with a clean, unbrushed face and contrast chest embroidery. SIGNAL BX Armor uses dense organic cotton three-end French terry, with a compact jersey-knit exterior and an unbrushed loopback reverse formed as one fabric.
The Architectural Boxy cut balances generous chest room with controlled dropped shoulders and full-length set-in sleeves. A 2×2 rib crewneck, 7 cm cuffs, and a 7 cm hem keep the edges defined without making the body cropped or sharply drawing in the waist.
Choose black with raised white tiger-head embroidery, or white with raised black embroidery. The solid body keeps the contrast focused at the chest, without an oversized printed graphic.
Pair it with denim or relaxed pants, worn on its own or over a T-shirt. BX brings an unbrushed cotton surface to a contemporary essentials wardrobe.
Detail
Specification
Product family
420 GSM Signature Loopback Jersey
Main fabric
100% organic cotton, three-end French terry
Main fabric weight
420 GSM, 420 grams per square meter
Outer surface
Clean, compact, unbrushed jersey-knit face; no Triple Carbon Peach
Interior
Unbrushed integral loopback; no brushed fleece or added lining
Fit
Architectural Boxy; dedicated crewneck sweatshirt pattern
Sleeves
Full-length set-in sleeves with controlled dropped shoulders
Neckline
Crewneck with 2×2 rib trim; approximately 2.5 cm finished height
Cuffs
2×2 rib, 7 cm finished height; included in total sleeve length
Bottom hem
2×2 rib, 7 cm finished height; included in body length
Rib composition
95% organic cotton / 5% elastane
Branding
Raised contrast tiger-head chest embroidery and woven side label
Colors
Black with white embroidery / White with black embroidery
Size range
XS–2XL; unisex
BX preserves the clean, compact face of the French terry without the MX peached finish. Its inner loops remain unbrushed and integral to the fabric.
MX Signature and BX Armor share a dedicated Architectural Boxy crewneck sweatshirt pattern: a generous chest, controlled dropped shoulders, and full-length set-in sleeves. The ribbed hem gives the lower edge mild shape without turning the body into a cropped or tightly cinched silhouette.
Our size labels are intentionally generous. Start with the body-chest guide, then compare a sweatshirt you own with the finished measurements below. At a boundary between sizes, choose using your preferred proportions and the garment chart rather than assuming a universal size conversion.
Recommended Body Chest
Size
Body chest — cm
Body chest — inches, approx.
XS
92–102
36.2–40.2
S
102–112
40.2–44.1
M
112–122
44.1–48.0
L
122–132
48.0–52.0
XL
132–142
52.0–55.9
2XL
142–152
55.9–59.8
Finished Crewneck Sweatshirt Measurements
Size
Half chest
Body length
Shoulder width
Sleeve length
XS
58 / 22.83
70 / 27.56
53 / 20.87
59 / 23.23
S
63 / 24.80
72.5 / 28.54
55 / 21.65
60 / 23.62
M
68 / 26.77
75 / 29.53
57 / 22.44
61 / 24.02
L
73 / 28.74
77.5 / 30.51
59 / 23.23
62 / 24.41
XL
78 / 30.71
80 / 31.50
61 / 24.02
63 / 24.80
2XL
83 / 32.68
82.5 / 32.48
63 / 24.80
64 / 25.20
Body length includes the complete 7 cm ribbed hem. Sleeve length includes the complete 7 cm cuff.
Do not add either rib height to the measurements above.
How to Measure
Measurement
How to measure
Body chest
Measure around the fullest part of your chest with the tape level and relaxed. This is a body circumference, not a flat garment width.
Half chest
Lay the sweatshirt flat and measure straight across between the underarm/side-seam intersections. Do not use an arbitrary below-armhole offset.
Body length
Measure from the high shoulder point at the side-neck attachment seam to the finished bottom edge. Exclude collar height and include the full bottom rib.
Shoulder width
Measure straight across the back between the shoulder-to-sleeve seam intersections.
Sleeve length
Measure from the shoulder-to-sleeve seam along the relaxed upper sleeve to the finished cuff edge, including the entire cuff. Do not measure from the center back of the neck.
Measure the garment dry and relaxed, without stretching the body or ribs. Use this crewneck sweatshirt chart rather than the T-shirt, Henley, or raglan sweatshirt chart.
For additional guidance, see our Size & Fit Guide.
SIGNAL pairs a solid black or white sweatshirt with raised tiger-head embroidery in the opposite color. The contrast stays focused at the left chest.
Color option
Body color
Chest embroidery
Black
Solid black
Raised white contrast tiger-head embroidery
White
Solid white
Raised black contrast tiger-head embroidery
Both MX Signature and BX Armor use these contrast pairings. MX has a peached outer face; BX keeps its face unbrushed. Both retain the same unbrushed loopback interior, set-in sleeves, and crewneck sweatshirt measurements.
Our crewneck sweatshirt quality standard sets requirements for the finished French terry and the assembled garment. It covers fabric weight, dimensional change, surface appearance, colorfastness, and twisting after washing.
Property
Required standard
Test reference
Finished main-fabric weight
420 GSM ±5% — 399–441 g/m²
ASTM D3776/D3776M
Dimensional change
No more than 5% in either length or width after five complete wash-and-dry cycles
ISO 3759, ISO 6330, and ISO 5077
Pilling and fuzzing
Grade 4 or higher at the prescribed stages through 7,000 rubs; face and reverse assessed separately
ISO 12945-2, assessed under ISO 12945-4
Wash colorfastness
Color change and staining: Grade 4 or higher
ISO 105-C06, A1M
Dry rubbing colorfastness
Grade 4 or higher
ISO 105-X12
Wet rubbing colorfastness
Black, Burnt Umber, and Dark Earth shell: Grade 3 or higher; White shell: Grade 4 or higher
ISO 105-X12
Garment spirality
No more than 3% after the specified five-cycle laundering program
ISO 16322-3
The standard also covers rib recovery, seam security, loopback integrity, and embroidery appearance. These are product acceptance requirements, not individual measured results for every color, size, or production lot. Single-jersey T-shirt test results do not establish this French terry sweatshirt’s performance.
The dimensional-change program uses 30°C washing and line drying. The separate 40°C laboratory wash-colorfastness method is not a home-care instruction. Always follow the attached care label.
Care step
Instruction
Wash
Machine wash cold, maximum 30°C / 86°F, on a gentle cycle. Turn inside out and wash with similar colors. Wash dark colors separately.
Bleach
Do not bleach.
Dry
Do not tumble dry. Gently reshape and line dry in the shade without stretching the neck or shoulders.
Iron
Use low heat on the reverse only if permitted by the garment care label. Avoid direct heat or pressure on the embroidery and, on MX, the peached outer face.
Always follow the care label attached to your sweatshirt.
Two surface finishes, one crewneck sweatshirt fit. Both series use 420 GSM organic cotton three-end French terry with an unbrushed integral loopback reverse.
Detail
MX Signature
BX Armor
Outer face
Face-only Triple Carbon Peach; finely peached and matte
Clean, compact, unbrushed jersey-knit face
Interior
Unbrushed knitted loops
The same unbrushed loopback construction
Fit and measurements
Architectural Boxy; dedicated set-in crewneck sweatshirt pattern
The same finished measurements
Sleeves
Full-length set-in sleeves with controlled dropped shoulders
The same sleeve construction
Neckline, cuffs, and hem
2×2 rib crewneck; 7 cm cuffs and hem
The same rib construction
Choose it for
A softer, peached outer surface
A clean, unbrushed cotton face
Choose by the outer surface you prefer. MX does not have a fleece-brushed interior, and BX does not use a different size chart. Both retain the loopback reverse and the same sweatshirt proportions.
Question
Answer
Is the BX outer face brushed or peached?
No. BX Armor keeps the French terry face clean and unbrushed. Triple Carbon Peach is the MX Signature outer-surface treatment.
Does loopback mean a separate lining?
No. The knitted loops are part of the same French terry fabric as the outer face. There is no inserted lining, bonded backing, or brushed-fleece interior.
Does BX fit differently or use different cuffs from MX?
No. Both use the same dedicated Architectural Boxy crewneck pattern, finished measurements, and 2×2 rib collar, cuffs, and hem. Both have set-in sleeves, not raglan sleeves.
Does the ribbed hem make this a cropped sweatshirt?
No. The body is full-length, with mild shaping at the lower edge. The 7 cm hem is already included in body length, and the complete 7 cm cuff is included in sleeve length.
Topic
Details
Destinations
Shipping is available to selected international destinations. Available methods, charges, and delivery estimates appear at checkout.
Processing
Orders are typically processed within 1–3 business days after confirmation. Processing time is separate from shipping time.
Returns
Eligible return requests must be submitted within 16 days of delivery, subject to the Returns & Exchanges Policy and applicable consumer rights.
Condition
Returned items must meet the policy requirements, including being unworn, unused, unwashed, and returned with original tags attached.
Exchanges
Subject to approval, product availability, and destination requirements.
Read the Shipping & Delivery Policy and Returns & Exchanges Policy for complete terms.
