420 GSM Heavyweight French Terry Crewneck Sweatshirt | STRATA BX Armor
420 GSM organic cotton French terry. Architectural Boxy fit. Clean unbrushed face. Unbrushed loopback interior.
A 420 GSM boxy crewneck sweatshirt that keeps the cotton knit surface unbrushed. STRATA BX Armor pairs a clean, compact jersey-knit face with an unbrushed loopback reverse, both formed within the same organic cotton three-end French terry fabric. There is no added lining or fleece-brushed interior.
The dedicated Architectural Boxy sweatshirt cut gives the chest room while keeping the body full-length and balanced. Controlled dropped shoulders lead into full-length set-in sleeves. A 2×2 rib crewneck, 7 cm cuffs, and a 7 cm bottom rib complete the shape with restrained shaping rather than a tightly cinched waist.
The controlled STRATA wash gives Burnt Umber and Dark Earth subtle tonal variation without heavy distressing. Raised white tiger-head embroidery contrasts with both colors.
Pair BX with denim or relaxed pants, worn alone or over a T-shirt. It 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
Collection finish
Controlled STRATA wash with restrained tonal variation
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 white tiger-head chest embroidery and woven side label
Colors and sizes
Burnt Umber / Dark Earth; XS–2XL; unisex
The STRATA wash changes the color expression without adding MX’s peached finish. BX retains its unbrushed face and integral loopback reverse. It shares MX’s finished sweatshirt dimensions and rib construction; the difference is the outer surface.
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.
STRATA gives this heavyweight French terry a different color expression. A controlled wash introduces subtle tonal depth rather than aggressive acid washing or heavy distressing.
Color
Appearance
Chest embroidery
Burnt Umber
Warm, oxidized orange-brown with restrained washed depth.
White contrast
Dark Earth
Deep brown with controlled tonal variation.
White contrast
Both colors feature raised white tiger-head embroidery on the left chest.
The color name identifies the garment shade, not the embroidery color.
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 BX brushed because the color is washed?
No. STRATA’s controlled wash creates tonal color variation. BX keeps the outer face unbrushed and does not receive Triple Carbon Peach.
What does loopback mean on this sweatshirt?
It describes the knitted loops on the inside of the French terry. They are part of the same fabric as the outer face, not a separate lining or bonded backing.
Does BX fit differently from MX?
No. Both use the same dedicated Architectural Boxy crewneck sweatshirt pattern and finished measurements. Choose by the outer surface you prefer, and use the shared sweatshirt size chart.
Does the ribbed hem make the sweatshirt cropped?
No. The body is full-length. The hem provides mild shape without aggressive waist cinching, and its 7 cm height is already included in the stated body 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.
