Laser on Jeans vs Fabric

If the pattern requires continuity across the pockets, the laser must be applied after the jeans are sewn, as shown in the photo on the left. For patterns that do not require symmetrical continuity, the laser is applied directly all over the fabric before manufacturing.

Sizing in Kids Jeans

Pattern grading in kids jeans varies significantly from brand to brand. If we are going to produce kids’ jeans, we must get fit sample approvals across different age groups—such as 4Y, 10Y, and 14Y. This isn’t an issue with men’s or women’s wear, but kids’ trousers are a totally different story

Sizing in Women Jeans

Size charts that follow XS-S-M or 34-36-38 are typically graded with a 2 cm increment on the half-waist and 4 cm on the total circumference, but American sizing is different. Going from size 25 to 26, it is graded by 1.25 cm at half-waist and 2.5 cm (1 inch) around the total circumference, just like men’s pants. As with men’s pants, due to high-waist and low-waist styles, a size 36 in women’s pants may not measure the exact same total waist circumference across every model.

AMERICAN SIZING VS EUROPEAN

Sizing in Men Jeans

The most common sizing scale in men’s jeans runs as 30-31-32, and so on. Pattern grading is based on a 2.5 cm (1 inch) difference in total waist circumference between each size, which equals 1.25 cm for the half-waist measurement. Other dimensions are adjusted accordingly to maintain the overall fit and silhouette of the pants. The inseam length can always be customized based on customer preference.

However, a size 32 may not have the exact same measurements across every pair of jeans. This depends heavily on where the pants sit on the body, with rise styles—such as high waist or low waist—being the primary factors behind these variations.

While shorter inseams are preferred in southern countries, inseams 5–10 cm longer are favored in northern countries.

32 size jeans also is not same in every brand. 

Custom Button Manufacturing

Custom buttons have a minimum order quantity (MOQ) of 5,000 pieces. We can provide design work for your brand upfront. Custom brass buttons generally cost €200, while Zamac buttons cost €400 (prices for enameled or other specialty button types may vary depending on the design). Since molds are required for production, we are unable to provide physical samples before the final run.

Brass vs Zamac Buttons

Zamac vs. Brass: Technical & Production Comparison

Feature / MetricZamac (Zinc Alloy)Brass
Primary Base MetalZinc (alloyed with aluminum, magnesium, copper)Copper & Zinc alloy
Manufacturing MethodDie-Casting: Liquid metal is injected into a steel mold cavity.Stamping: High-pressure press stamps the shape from a flat metal sheet.
Design / Logo CapabilityExcellent (3D): Perfect for complex, curved shapes, sharp relief details, hollowed backs, and intricate borders.Good (2D): Best for flat or slightly domed surfaces, simple embossed/debossed line work.
Average Mold Fee (approx.)Higher: ~€400 (requires precision steel injection molds).Lower: ~€200 (requires stamping dies).
Weight & FeelHeavy & Solid: Feeling of premium luxury due to the solid cast density.Lightweight: Hollow-backed shell wrapped around a core pin.
Rust & Wash ResistanceModerate: Naturally oxidizes if the protective electroplating layer chips during harsh stone or acid washing.Excellent: 100% rust-proof. Extremely durable under heavy industrial chemical washes.
Tensile / Pull StrengthGood, but more rigid. Extreme shear stress can cause it to snap.Excellent. Ductile metal that bends rather than breaks under heavy physical stress.
Needle Detector TestRiskier: Low-purity alloys can contain trace ferrous elements that trigger detection machines.Highly Safe: Pure brass is non-magnetic, ensuring zero false alarms during retail export scans.

Which one should you choose?

Brass is way more classic. If button is not centerpiece of your model brass is safer.  Diesel, G-Star RAW, Replay, Calvin Klein Jeans, Armani Exchange kind of brands use zamac buttons.

  • Choose Zamac if your design features a prominent, highly detailed 3D brand logo, you want a heavy “premium weight” button, and you have the budget to cover the higher upfront mold costs (€400).

  • Choose Brass if  you want a classic heritage look with a lower mold investment (€200), and you must guarantee trouble-free needle detection for export.

Rivets at coin pocket

The pants in the photo are 14 oz. Rivets can also be attached to the watch pocket, but there is a possibility they might fall off in the long run. While the tack pierces through two layers of fabric at the pocket edges, it goes through 4 layers at the watch pocket, and the fabric becomes as stiff as a rock. Because of this, applying capped or nipple rivets to the watch pocket is very risky. Nipple rivets are more durable due to the tack traveling a longer distance, but using them on the watch pocket is still a major risk. On thinner pants, any kind of rivet can be used on the watch pocket.

YKK Zip vs Others

YKK is generally used as the industry standard, but that doesn’t mean the other brands are bad. If you need to manufacture the trousers very cheaply, you’ll cut costs even on the zipper. Beyond that, there isn’t much more to say.

Zip vs Button Fly

Zip is flexible, button is rigid

Skinny jeans always use a zip fly. On 100% cotton jeans, depending on the style, the fly can be either a zipper or a button fly. A button fly used to be thought of mainly as a men’s-jeans thing, but these days it’s used even on women’s jeans — and honestly, the men’s/women’s divide in fashion is closing up more and more anyway.

With a button fly, the front rise comes out to the same measurement regardless of size. With a zipper, we have the option of using a shorter zip on smaller sizes, but as long as there’s enough room in the front rise, there isn’t much difference between the two. It used to be that the zipper-versus-button choice on the fly varied from country to country, but that’s no longer really a thing.

Bottom line: if you’re undecided, a zipper is always the safer. And it’s not something that affects sales one way or the other.

Neon Color Production

Dyeing Neon vs. Normal Colors: Side-by-Side Comparison

FactorNormal ColorsNeon Colors
Dye ChemistryEstablished reactive, vat, acid, or disperse dyes with proven formulationsSpecialty fluorescent dyes; often limited dye class options; newer chemistry
LightfastnessGood to excellent (often 5–8/8 on standard tests)Poor to fair (typically 2–4/8); fades noticeably in 1–2 months of sun exposure
Wash Fastness4–5/5 typical (minimal color loss over 20+ home washes)2–3/5 common; bleeding and crocking risk increases; dye can transfer to other garments
Rubbing/CrockingLow (fiber-bound, especially vat dyes)High; loose dye particles on surface make crocking a real problem, especially on pale fabrics
Temperature StabilityStable 40–90°C; many dyes improve at higher tempsDegrades above 60°C; brightness loss accelerates; high temps can cause shade shifts
pH SensitivityModerate; ranges accommodate small pH shiftsExtreme; narrow pH window (±0.5 can alter shade noticeably)
Leveling/EvennessRelatively forgiving; standard leveling agents work reliablyDifficult; uneven strike-off is common, especially on tight weaves like gabardine
Penetration on Tight WeavesAdequate even on gabardine with standard conditionsPoor; tight weave resists fluorescent dye molecules; surface-heavy dyeing common
Cost per kg$8–25 typically$20–100+ (4–10× more expensive)
Sourcing & ConsistencyWide supplier base; batch-to-batch variation lowLimited suppliers; batch variation higher; discontinued shades are common
Regulatory ApprovalStandard OEKO-TEX, ZDHC, EU restrictions well-knownStricter scrutiny; some fluorescent brighteners banned in EU; compliance documentation harder
Sampling CostLow (small dye quantities sufficient)High (need more dye to get readable neon effect; failed trials are expensive)
Customer ExpectationsDurability built into product positioningCustomer often unaware neon = short-lived; complaints common
Post-TreatmentsStandard finishes (softening, anti-static) sufficeRequire cationic fixatives to improve wash fastness; adds process steps & cost
Storage StabilityDyed fabric remains stable 6–12 months in cool, dry conditionsNeon dyes fade during storage; accelerated by light and humidity; shelf life 2–4 months

Neon Fabric Manufacturing

Instead of dyeing a PFD white product, we can produce fabric directly in neon color. When manufacturing neon color fabric, we can apply a Teflon coating to the fabric to increase color durability. This imparts a slight stiffness to the fabric, but we overcome this with a rinse wash.

Pantone Code vs Real Product

Products can be dyed directly from a Pantone code, but only after the Pantone specification has been tested and validated through lab work on the specific fabric being used. Keep in mind that the same Pantone code may not produce identical results across different fabrics — particularly if you’ve previously matched that code to a different fabric.

Dry Process Examples as Video

Applying Dry Processes to Denim Samples: A Guide to Ripping, Whiskers, and Other Finishes.

Video below belongs to jeans above.

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