Name: Gas Blue Polyurethane Men Sneaker
Brand: Gas
SKU: GA-43839-EU40/US7
Price: 69.0 GBP
Availability: InStock

Size Chart

Shoe Size Guide

Find your perfect fit with our comprehensive shoe size conversion chart.

How to Measure Your Feet

Stand on a piece of paper with your heel against a wall
Mark the longest point of your foot on the paper
Measure from the wall to the mark in centimetres
Repeat for both feet and use the larger measurement
Measure in the evening when feet are at their largest

Women's Shoe Sizes

UK Size	EU Size	US Size	Foot Length (cm)	Foot Length (inches)
3	36	5	22.5cm	8.9"
3.5	36.5	5.5	23cm	9.1"
4	37	6	23.5cm	9.3"
4.5	37.5	6.5	24cm	9.4"
5	38	7	24.5cm	9.6"
5.5	38.5	7.5	25cm	9.8"
6	39	8	25.5cm	10"
6.5	40	8.5	26cm	10.2"
7	41	9	26.5cm	10.4"
7.5	41.5	9.5	27cm	10.6"
8	42	10	27.5cm	10.8"
8.5	42.5	10.5	28cm	11"
9	43	11	28.5cm	11.2"

Men's Shoe Sizes

UK Size	EU Size	US Size	Foot Length (cm)	Foot Length (inches)
3	35.5	4	22.5cm	8.9"
3.5	36	4.5	23cm	9.1"
4	37	5	23.5cm	9.3"
4.5	37.5	5.5	24cm	9.4"
5	38	6	24.5cm	9.6"
5.5	38.5	6.5	25cm	9.8"
6	39	7	25.5cm	10"
6.5	40	7.5	26cm	10.2"
7	40.5	8	26.5cm	10.4"
7.5	41	8.5	27cm	10.6"
8	42	9	27.5cm	10.8"
8.5	42.5	9.5	28cm	11"
9	43	10	28.5cm	11.2"
9.5	44	10.5	29cm	11.4"
10	44.5	11	29.5cm	11.6"
10.5	45	11.5	30cm	11.8"
11	46	12	30.5cm	12"
11.5	46.5	12.5	31cm	12.2"
12	47	13	31.5cm	12.4"
13	48	14	32.5cm	12.8"
14	49	15	33.5cm	13.2"

Fitting Tips:

If you're between sizes, size up for comfort
Different brands may fit differently - always check specific brand sizing
Leave about 1cm of space between your longest toe and the end of the shoe
Consider the shoe style - boots may require half a size up for thicker socks
Feet can swell during the day, so measure in the evening for the most accurate size
Always measure both feet as they may differ slightly in size
For athletic shoes, you may need a half size larger than dress shoes
Leather shoes may stretch slightly with wear, while synthetic materials typically don't

Gas Blue Polyurethane Men Sneaker

Sale price £69.00 Regular price £89.00 Sold out Unit price / Taxes included. Shipping calculated at checkout.

Low stock

Shoe Size Men : EU40/US7

EU40/US7
EU41/US8
EU42/US9
EU43/US10
EU44/US11
EU45/US12
EU46

Product variants

Quantity

Free return within 14 days*

Ask a Question

Product Description

Experience the perfect fusion of style and athleticism with GAS’s LEONARD LTX Sports Shoes. Adorned with royal blue contrasting details that command attention, these sneakers embody a modern edge that’s hard to ignore. Ideal for the trendsetter on the move, they boast a removable footbed for personalized comfort, alongside a striking logo print that pronounces your fashion-forward choices with pride. Step into the bold world of GAS and elevate your sneaker game.

Material: 30% Polyester, 70% Polyurethane
Country of Origin: China
Color: Blue

Professional Care Guide - DesignerCentro

Designer Sneaker Care Guide

Daily Care Routine

Remove immediately after wear to prevent odor buildup
Loosen laces completely to reduce stress on eyelets and fabric
Wipe down with microfiber cloth to remove surface dirt
Air dry for at least 2 hours before storing
Insert shoe trees or crumpled paper to maintain shape
Rotate pairs

Weekly Maintenance

Deep brush cleaning with soft-bristled brush to remove embedded dirt
Lace cleaning
Sole inspection for wear patterns and embedded debris
Upper material check for scuffs, stains, or damage
Protective spray application if needed
Storage organization to prevent crushing and deformation

Cleaning by Material

Leather Sneakers

Soft brush to remove surface dirt
Leather cleaner for deeper cleaning
Condition regularly to prevent cracking
Polish if needed for smooth leather finishes
Avoid soaking

Canvas/Fabric Sneakers

Gentle machine wash (if manufacturer allows)
Hand scrub with soft brush and mild soap
Spot clean stains immediately
Air dry only
Fabric protector spray for stain resistance

Suede/Nubuck Sneakers

Suede brush only
Suede eraser for scuff marks
Steam treatment for stubborn stains
Suede protector spray essential
Professional cleaning for heavy soiling

Deep Cleaning Process

Remove laces and insoles if possible
Brush away loose dirt from all surfaces
Pre-treat stains with appropriate cleaner
Clean uppers using material-specific method
Scrub soles with old toothbrush and degreaser
Rinse carefully avoiding oversaturation
Stuff with paper and air dry completely
Reassemble when fully dry

Sole Care & Maintenance

Regular cleaning prevents permanent staining
Toothbrush scrubbing for textured sole patterns
Degreasing agents for rubber and foam soles
Sole protectors for limited edition or expensive pairs
Professional resoling when tread wears down
Avoid harsh chemicals that can break down rubber

Storage Solutions

Original boxes with silica gel packets for humidity control
Clear storage containers for easy identification
Shoe trees or stuffing to maintain shape
Climate-controlled environment prevents material degradation
Avoid direct sunlight which can fade colors and weaken materials
Dust bags for extra protection of premium pairs

Protection Strategies

Protective sprays applied before first wear
Crep protect or similar for water and stain resistance
Sole guards for collectible or limited edition pairs
Regular reapplication of protective treatments
Weather-appropriate choices
Backup pairs for daily wear to preserve special sneakers

Lace Care & Replacement

Remove for thorough cleaning of both laces and eyelets
Machine wash cotton laces in mesh bag
Hand wash specialty laces (leather, rope, etc.)
Replace when frayed to maintain overall appearance
Keep spare sets in original colors
Proper lacing techniques to reduce wear and improve fit

Odor Prevention & Treatment

Antimicrobial sprays used regularly
Cedar shoe inserts for natural odor absorption
Removable insoles for easier cleaning and replacement
UV sanitizing when possible (check material compatibility)
Baking soda treatment overnight for stubborn odors
Professional cleaning for persistent smell issues

Special Edition & Limited Release Care

Minimal wear to preserve value and condition
Professional cleaning only for expensive or rare pairs
Documentation of condition with photos
Original packaging preservation for resale value
Insurance consideration for high-value collections
Climate-controlled storage essential for long-term preservation

Seasonal Considerations

Winterization with appropriate protective treatments
Summer ventilation to prevent moisture buildup
Rotation schedule based on weather and activities
Deep cleaning before seasonal storage
Inspection routine for weather-related damage

Travel Care

Shoe bags to protect other items in luggage
Portable cleaning kit for maintenance on the go
Weather research for destination-appropriate choices
Backup pair for extended trips
Quick-dry materials preferred for travel

Professional Services

Sneaker cleaning services for premium or difficult cases
Restoration specialists for vintage or damaged pairs
Custom protection application for high-end sneakers
Authentication services for resale or insurance
Sole replacement when available for specific models

Investment Protection

Wear rotation to extend lifespan of entire collection
Condition documentation for warranty and resale
Market value awareness for limited editions
Proper insurance coverage for valuable collections
Resale preparation maintaining original condition

Following these guidelines will keep your designer sneakers looking fresh and maintain their value, whether they're daily drivers or special collection pieces.

Shipping & delivery information

Fast & Reliable Shipping

✅ FREE Standard Shipping on all orders over £100/€115 throughout the UK & Europe

📦 Order Processing

Orders processed within 1-2 business days
Cut-off time: Orders placed before 2 PM are processed same day
All orders receive secure, discreet packaging suitable for luxury items

🚛 Delivery Timeline

Standard delivery: 5-7 business days
Express shipping available: 2-3 business days

📱 Order Tracking

Tracking information provided once your order ships
SMS and email notifications at key delivery milestones
We actively monitor every order to ensure fastest possible delivery

🛡️ Secure Delivery

All orders fully insured during transit
Signature required for all orders
Our couriers will attempt to deliver up to 3 times or take the order to a collection point with clear instructions on how to proceed to collect the package
Discreet packaging protects your privacy

🌍 International Shipping

UK & Europe: FREE standard shipping for all orders over £100/€115
Worldwide shipping available from £24
All international orders include customs documentation

❓ Questions? Contact our team for shipping inquiries or special delivery requirements. We're committed to getting your designer apparel to you safely and swiftly.