The difference between round and flat laces lies in cross-sectional geometry, alignment with internal eyelet dimensions, and the resulting length required for tying.


While round laces maintain a neutral aesthetic and are ideally suited for delicate blind eyelets (2 mm) or prominent punched eyelets (3 mm), flat laces (3 mm to 6 mm) sit flush against the tongue, distribute tensile pressure evenly across the instep, and require slightly more total length for knots and eyelet routing with thicker profiles.


  Cross-Section Comparison    Swipe sideways 
Shape & DimensionsModel SeriesFit & Pressure DistributionEyelet AlignmentRecommended Footwear Type
2.0 mm Round
Classic / Splendore
R2-CS / R2-SLCompact cord volume, minimal knot length requirement.Concealed blind eyelets (2.0 to 3.0 mm)Oxfords, dress derbies, elegant suit shoes.
3.0 mm Round
Classic Sportive
R3-CSSubstantial with excellent grip, dimensionally stable in speed hooks.Eyelets & hooks from 3.5 mmBudapesters, chukka boots, outdoor footwear.
3.0 mm Flat
Classic Sportive
F3-CSUltra-flat tongue contact, eliminates localized pressure points.Fine eyelets & blind eyelets from 2.5 mmGoodyear-welted classics, brogues, fine low shoes.
4.0 mm Flat
Classic Sportive
F4-CSUniform pressure distribution, smooth edge alignment.Punched eyelets from 3.5 mmDerbies, Budapesters, designer sneakers.
6.0 mm Flat
Classic / Xtra Robust
F6-CS / F6-XRBroad instep pressure relief, requires more lace length for tying.Wide eyelet slots & D-ringsRetro sneakers, heritage boots, workwear boots.

A timeless look is achieved by avoiding short-lived fashion trends and choosing a shoelace precisely tailored to the shoe type and its eyelet architecture.


The shoe itself determines the look: formal smooth leather classics with blind eyelets call for timelessly delicate 2 mm round laces (R2) or slender 3 mm flat laces (F3), while distinctive Budapesters, chukkas, and heritage boots only unfold their lasting character with robust 3 mm round laces (R3), 4 mm flat laces (F4), or substantial 6 mm profiles (F6/XR).


  Style & Type Comparison    Swipe sideways 
Classic LookRecommended SeriesStyle ImpactEyelet TypeMatching Footwear Types
Formal-TraditionalR2-CS / R2-SL (2 mm)Maximally discreet, unobtrusive, elegant understatement.Blind eyelets (2.0–3.0 mm)Oxfords, gala shoes, fine derbies.
Subtle Connoisseur LookF3-CS (3 mm)Refined flat profile, subtly breaks with round lace conventions.Blind eyelets & fine eyeletsGoodyear-welted classics, brogues.
Classic-SubstantialF4-CS (4 mm)Balanced contours with harmonious silk sheen finish.Punched eyelets from 3.5 mmOpen derbies, Budapesters, casual classics.
Rustic & HeritageR3-CS (3 mm)F6-XR (6 mm)Solid, authentic, ideally matched to heavy leathers and vintage patina.Metal eyelets & speed hooksWorkwear boots, hunting boots, chukka boots.

Measuring the original lace directly tip-to-tip while unlaced remains the most reliable method for determining length.


Because shaft width, instep volume, and lacing techniques vary, a purely mathematical formula is prone to error; standard LACCICO length increments provide practical guidance based on eyelet pairs.


  Length Guide    Swipe sideways 
Eyelet PairsRecommended LengthTypical Footwear Types & Lacing MethodsAvailable Model Series
1–2 Eyelet Pairs45 cmChukka boots, minimalist low shoes with 2 eyelets.R2-CS, R2-SL, R3-CS
3–4 Eyelet Pairs60 cmClassic derbies, bluchers, summer low shoes.R2-CS, R2-SL, R3-CS, F3-CS, F4-CS
4–5 Eyelet Pairs75 cmClassic oxfords, business dress shoes, Goodyear-welted Budapesters.All series (R2, R3, F3, F4, F6, F6-XR)
5–6 Eyelet Pairs90 cmOxfords with wider shaft opening, low-top sneakers, casual low shoes.All series (R2, R3, F3, F4, F6, F6-XR)
7–8 Eyelet Pairs120 cmMid-cut boots, high-top sneakers, shoes with closely spaced eyelets.All series (R2, R3, F3, F4, F6, F6-XR)
9+ Eyelet Pairs150 – 180 cmTall boots, heritage boots, workwear boots with speed hooks.R2 (up to 180 cm), R3, F6, F6-XR (up to 150 cm)

A precise fit in the eyelet is guaranteed when the lace diameter or width is matched exactly to the internal clearance of the shoe eyelets.


For small, concealed blind eyelets (2.0 to 3.0 mm), only delicate 2 mm round laces (R2) or slender 3 mm flat laces (F3) are suitable; substantial 3 mm round laces (R3) and 4 mm flat laces (F4) require visible punched eyelets from 3.5 mm upward to prevent edge abrasion and sluggish gliding.


  Eyelet Fit Guide    Swipe sideways 
Internal Eyelet ClearanceMatching Model SeriesGlide & RoutingAvailable LengthsTypical Shoe Construction
2.0 – 3.0 mm
Blind eyelets
R2-CS / R2-SL (2 mm)F3-CS (3 mm)Glides with minimal friction without bunching or edge wear.R2: 45–180 cm
F3: 60, 75, 90, 120 cm
Goodyear-welted business shoes, oxfords, fine derbies.
From 3.5 mm
Punched / metal eyelets
R3-CS (3 mm)F4-CS (4 mm)Snug fit, fills the eyelet hole without play.R3: 45–150 cm
F4: 60, 75, 90, 120 cm
Budapesters, chukka boots, designer sneakers.
From 4.5 mm / slots
Wide eyelets & hooks
F6-CS (6 mm)F6-XR (6 mm)Flush routing without pinching or creasing outer edges.75, 90, 120, 150 cmSneakers, heritage boots, heavy work boots.

Shoelaces made from pure cotton offer superior knot security compared to synthetic fibers, protect the shoe's upper leather, and absorb finishing waxes permanently down to the fiber core.


Unlike slick polyester or nylon, the dense cotton braid does not chafe against the upper leather and avoids an artificial sheen.


  Material Comparison    Swipe sideways 
PropertyLACCICO Cotton (Waxed)Standard Synthetic (Polyester/Nylon)
Knot Hold & FrictionHigh inherent friction & wax adhesion; knot remains reliably secure.Slick synthetic surface; tends to come undone on its own.
Leather ProtectionSoft fiber structure; no cutting or chafing against the upper leather.Hard edge fibers can scratch delicate upper leather.
Wax AbsorptionComplete fiber penetration; wax is bound directly within the yarn.Does not absorb wax; wax flakes off at the surface.
Look & FeelRefined matte to deep luster; dimensionally stable, natural grip.Artificial plastic sheen; flimsy or wire-stiff hand feel.
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standard LACCICO length increments provide practical guidance based on eyelet pairs.  Length Guide    Swipe sideways Eyelet PairsRecommended LengthTypical Footwear Types & Lacing MethodsAvailable Model Series1\u20132 Eyelet Pairs45 cmChukka boots, minimalist low shoes with 2 eyelets.R2-CS, R2-SL, R3-CS3\u20134 Eyelet Pairs60 cmClassic derbies, bluchers, summer low shoes.R2-CS, R2-SL, R3-CS, F3-CS, F4-CS4\u20135 Eyelet Pairs75 cmClassic oxfords, business dress shoes, Goodyear-welted Budapesters.All series (R2, R3, F3, F4, F6, F6-XR)5\u20136 Eyelet Pairs90 cmOxfords with wider shaft opening, low-top sneakers, casual low shoes.All series (R2, R3, F3, F4, F6, F6-XR)7\u20138 Eyelet Pairs120 cmMid-cut boots, high-top sneakers, shoes with closely spaced eyelets.All series (R2, R3, F3, F4, F6, F6-XR)9+ Eyelet Pairs150 \u2013 180 cmTall boots, heritage boots, workwear boots with speed hooks.R2 (up to 180 cm), R3, F6, F6-XR (up to 150 cm)"}},{"@type":"Question","name":"Which shoelace thickness guarantees a precise fit in the eyelet?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"A precise fit in the eyelet is guaranteed when the lace diameter or width is matched exactly to the internal clearance of the shoe eyelets.For small, concealed blind eyelets (2.0 to 3.0 mm), only delicate 2 mm round laces (R2) or slender 3 mm flat laces (F3) are suitable; substantial 3 mm round laces (R3) and 4 mm flat laces (F4) require visible punched eyelets from 3.5 mm upward to prevent edge abrasion and sluggish gliding.  Eyelet Fit Guide    Swipe sideways Internal Eyelet ClearanceMatching Model SeriesGlide & RoutingAvailable LengthsTypical Shoe Construction2.0 \u2013 3.0 mmBlind eyeletsR2-CS \/ R2-SL (2 mm)F3-CS (3 mm)Glides with minimal friction without bunching or edge wear.R2: 45\u2013180 cmF3: 60, 75, 90, 120 cmGoodyear-welted business shoes, oxfords, fine derbies.From 3.5 mmPunched \/ metal eyeletsR3-CS (3 mm)F4-CS (4 mm)Snug fit, fills the eyelet hole without play.R3: 45\u2013150 cmF4: 60, 75, 90, 120 cmBudapesters, chukka boots, designer sneakers.From 4.5 mm \/ slotsWide eyelets & hooksF6-CS (6 mm)F6-XR (6 mm)Flush routing without pinching or creasing outer edges.75, 90, 120, 150 cmSneakers, heritage boots, heavy work boots."}},{"@type":"Question","name":"What advantages do shoelaces made of 100% genuine cotton offer compared to synthetics?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Shoelaces made from pure cotton offer superior knot security compared to synthetic fibers, protect the shoe's upper leather, and absorb finishing waxes permanently down to the fiber core.Unlike slick polyester or nylon, the dense cotton braid does not chafe against the upper leather and avoids an artificial sheen.  Material Comparison    Swipe sideways PropertyLACCICO Cotton (Waxed)Standard Synthetic (Polyester\/Nylon)Knot Hold & FrictionHigh inherent friction & wax adhesion; knot remains reliably secure.Slick synthetic surface; tends to come undone on its own.Leather ProtectionSoft fiber structure; no cutting or chafing against the upper leather.Hard edge fibers can scratch delicate upper leather.Wax AbsorptionComplete fiber penetration; wax is bound directly within the yarn.Does not absorb wax; wax flakes off at the surface.Look & FeelRefined matte to deep luster; dimensionally stable, natural grip.Artificial plastic sheen; flimsy or wire-stiff hand feel."}}] }

Shape & Diameter

Waxed Shoelaces by Shape & Diameter – Exact Specifications for Your Footwear

The fit and wearing comfort of any shoe depend decisively on the shoelace cross-section. At LACCICO, select precisely between filigree 2 mm and substantial 3 mm round laces, as well as flat laces in widths of 3 mm, 4 mm, and 6 mm. Densely braided from 100% pure cotton and thoroughly deep-waxed, our laces ensure friction-free gliding through eyelets, permanent edge stability, and a reliable, non-slip knot hold.

Round laces 2 mm

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Waxed Round Shoelaces (2 mm) – Laccico R2-CS Agate Grey
€4.99 *
1  pair
* Incl. VAT excl. Shipping
Waxed Round Shoelaces (2 mm) – Laccico R2-CS Beige
€4.99 *
1  pair
* Incl. VAT excl. Shipping
Waxed Round Shoelaces (2 mm) – Laccico R2-CS Black
€4.99 *
1  pair
* Incl. VAT excl. Shipping
Waxed Round Shoelaces (2 mm) – Laccico R2-CS Blue
€4.99 *
1  pair
* Incl. VAT excl. Shipping

Round laces 3 mm

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Waxed Round Shoelaces (3 mm) – Laccico R3-CS Agate Grey
€4.99 *
1  pair
* Incl. VAT excl. Shipping
Waxed Round Shoelaces (3 mm) – Laccico R3-CS Beige
€4.99 *
1  pair
* Incl. VAT excl. Shipping
Waxed Round Shoelaces (3 mm) – Laccico R3-CS Black
€4.99 *
1  pair
* Incl. VAT excl. Shipping
-9%
Waxed Round Shoelaces (3 mm) – Laccico R3-CS Brown
RRP €5.49
€4.99 *
Lowest price of the last 30 days: €4.99
1  pair
* Incl. VAT excl. Shipping

Flat laces 6 mm

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New item
Waxed Flat Shoelaces (6 mm) – Laccico F6-CS Ash Grey
€7.99 *
1  pair
* Incl. VAT excl. Shipping
Waxed Flat Shoelaces (6 mm) – Laccico F6-CS Aubergine
€7.99 *
1  pair
* Incl. VAT excl. Shipping
Waxed Flat Shoelaces (6 mm) – Laccico F6-CS Beige
€7.99 *
1  pair
* Incl. VAT excl. Shipping
Waxed Flat Shoelaces (6 mm) – Laccico F6-CS Black
€7.99 *
1  pair
* Incl. VAT excl. Shipping

Flat laces 4 mm

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Waxed Flat Shoelaces (4 mm) – Laccico F4-CS Aubergine
€4.99 *
1  pair
* Incl. VAT excl. Shipping
Waxed Flat Shoelaces (4 mm) – Laccico F4-CS Beige
€4.99 *
1  pair
* Incl. VAT excl. Shipping
Waxed Flat Shoelaces (4 mm) – Laccico F4-CS Black
from €3.99 *
1  pair
* Incl. VAT excl. Shipping
Waxed Flat Shoelaces (4 mm) – Laccico F4-CS Black Brown
€4.99 *
1  pair  | €4.99 / pair
* Incl. VAT excl. Shipping

Flat laces 3 mm

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Waxed Flat Shoelaces (3 mm) – Laccico F3-CS Beige
€4.99 *
1  pair
* Incl. VAT excl. Shipping
Waxed Flat Shoelaces (3 mm) – Laccico F3-CS Black
€4.99 *
1  pair
* Incl. VAT excl. Shipping
Waxed Flat Shoelaces (3 mm) – Laccico F3-CS Cognac
from €3.99 *
1  pair
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Waxed Flat Shoelaces (3 mm) – Laccico F3-CS Dark Blue
€4.99 *
1  pair
* Incl. VAT excl. Shipping

Round or Flat: The Matching Cross-Section Geometry for Eyelets and Shoe Types

Choosing between round and flat profiles is not merely a matter of taste, but an engineering match for the upper leather and eyelet construction: while round laces act as a compact cord running neutrally through the eyelet canal, flat laces distribute tensile force broadly across the entire instep, preventing pressure points on the tongue.

Round Laces (2 mm & 3 mm Diameter)

Compact Cord Guidance for Blind Eyelets, Dress Shoes, and Hooks

Filigree 2 mm round laces (series R2-CS and R2-SL) are tailored precisely to concealed blind eyelets (2.0 to 3.0 mm inner clearance) found on classic business shoes and Goodyear-welted Oxfords. For sturdier low shoes, brogues, or ankle boots with speed hooks and punched metal eyelets from 3.5 mm, the sturdy 3 mm round lace (series R3-CS) delivers the necessary dimensional stiffness to wrap cleanly around hook fittings without flattening.

Flat Laces (3 mm, 4 mm & 6 mm Width)

Flat Contact Area for Even Pressure Distribution and Sneakers

Flat bands rest smoothly against the tongue: the slender 3 mm profile (F3-CS) is the insider choice for fine dress footwear with narrow eyelets. The 4 mm option (F4-CS) bridges the gap for leather sneakers and casual derbys, whereas substantial 6 mm flat laces (F6-CS and F6-XR) provide retro sneakers, court shoes, and rugged heritage boots with prominent edge definition and lasting knot grip.

Material Advantage: 100% Pure Cotton Protects Upper Leather

Unlike abrasive synthetic fibers, densely braided natural cotton prevents a sawing effect within the eyelet canal. The thorough wax bath smooths the fiber structure, minimizes friction on sensitive leather edges, and ensures the shoelace functions as a leather-protecting component even under high tensile pull.