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QUILO FLT X4 BOOT Recommended Temperature: down to -20 °C / -5 °F
Since its launch in 2018, the QUILO from Blivet Sports has become the ultimate choice for winter cyclists seeking comfort, warmth, and performance.
The FLT was designed specifically for fatbike riders who demand the best in snow pedaling dynamics. Its design ensures optimal contact between boot and pedal, providing superior traction and power transfer, crucial for winter cycling.
The 2025 version – QUILO FLT X4 – marks a major evolution. Completely redesigned, it pushes the limits of winter cycling boot design. Our goal: increase thermal protection without adding weight or compromising its unique style. The result: a more mature, more technical shoe, while remaining the lightest in its category.
Thermal Performance & Protection
· 3M™ Thinsulate™ 400 g insulation — double the previous generation, providing enhanced warmth while keeping the legendary lightness of the QUILO.
· New Blivet Sports THEREX membrane (10K mm / 10K g/m²) — laminated to the inner fabric, offering exceptional waterproofing and optimal breathability during intense activity.
Comfort & Control
The Vibram® Fort William® sole ensures exceptional grip on flat pedals, enhanced stability, and power transfer without compromise. The LISZT AIR TOEBOX provides a generous 4E+ toe volume, keeping your feet warm and away from cold surfaces. The dual independent lacing system allows precise adjustment, while the calf strap (21 cm total height) effectively blocks snow.
Key New Features
· 3M™ Thinsulate™ 400 g insulation for maximum warmth
· New THEREX membrane (10K / 10K) for perfect waterproof/breathable balance
· 360° rubber band for superior durability
· Internal heel counter for improved foot stability
· New cuts and surface materials, smooth lines, and technical details
Technical Specifications
· Vibram® XS Trek sole + high-thermal-resistance EVA insert
· LISZT AIR TOEBOX: 4E+ volume
· Dual quick-lace system with automatic lock
· Tongue and heel loops for quick on/off
· Multi-layer removable insole: 70% natural wool
· Calf strap + gaiter loop
· 360° reflective strips
· Weight: 1282 g (size 43, pair)
· Sizes: EU 37 – 48
Note
The QUILO FLT X4 is designed for flat pedals.
| EURO |
NORTH AM. MAN |
NORTH AM. WOMAN |
| 36 | 4,5 | 5,5 |
| 37 | 5,5 | 6,5 |
| 38 | 6 | 7 |
| 39 | 7 | 8 |
| 40 | 7,5 | 8,5 |
| 41 | 8,5 | 9,5 |
| 42 | 9 | 10 |
| 43 | 10 | 11 |
| 44 | 11 | 12 |
| 45 | 11,5 | 12,5 |
| 46 | 12 | 13 |
| 47 | 13 | 14 |
| 48 | 14 | 15 |
Following the measurement of the full length of your foot, you must add 15 mm to this measure for an adequate adjustment.
| EURO SIZE | A - LENGTH (mm) | B - WIDTH (mm) | C - CIRCUMFERENCE (mm) |
| 36 | 234 | 80,2 | 233 |
| 37 | 237 | 81,5 | 237 |
| 38 | 246 | 82,8 | 241 |
| 39 | 249 | 84,1 | 245 |
| 40 | 258 | 85,4 | 249 |
| 41 | 261 | 86,7 | 253 |
| 42 | 270 | 88 | 257 |
| 43 | 273 | 89,3 | 261 |
| 44 | 282 | 90,6 | 265 |
| 45 | 285 | 91,9 | 269 |
| 46 | 294 | 93,2 | 273 |
| 47 | 297 | 94,5 | 277 |
| 48 | 306 | 95,8 | 281 |
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REFUND & WARRANTY POLICY
We do not issue refunds. Only exchanges or credits are accepted.
Our policy is valid for a period of 10 business days. If 10 business days have passed since your purchase, unfortunately we cannot offer you an exchange or credit.
To qualify for an exchange or credit, your item must be unused and in the same condition you received it and bear the tag. It must also be in the original packaging.
Items that cannot be returned:
* Gift cards
To make an exchange or receive a credit, you must show us a receipt or proof of purchase.
Sale items (if applicable)
Only regular priced items can be exchanged. Unfortunately, sale items are not exchangeable or refundable.
Exchanges (if applicable)
We only replace an item if it is defective or damaged. If in this case you would like to exchange it for the same item, send us an email at support@blivetsports.com and send us your item to: Blivet Sports, 5237 Boulevard Wilfrid-Hamel, suite 130, Quebec, PQ , Canada, G2E 2H2
Who do I contact for defective products?
Products purchased thought an authorised retailer.
If you purchased Blivet Sport's products from one of our retailers, the first to contact is your retailer. All Blivet Sport’s retailers on behalf of Blivet Sports will look over a warranty case, will be talking to the consumers about the issue the might face, will look at the product and will be able to judge what to do. The very first request must go to your authorised retailer.
Before contacting your retailer, it is important to read what is described in the Warranty section just below.
Products purchased thought the Blivet Sport’s web store.
If you purchased Blivet Sport's products from Blivet Sport’s web store, in this case, than you will have to submit your request to Blivet Sports directly.
Before contacting Blivet Sports, it is important to read what is described in the Warranty section just below.
Warranty
All Blivet Sports products are guaranteed against manufacturing defects for a period of one year after the date of purchase and you must show us a receipt or proof of purchase.
- Blivet Sports reserves the right to repair or replace with an identical or equivalent product.
- This warranty applies only to the original owner of the products and cannot in any case be transferred to a subsequent owner.
- The warranty only applies in the event of normal and intended use of the product.
- Tears, degradation by the sun's rays, stitches and snags , are not covered by this warranty.
- Damage caused by abrasion against surfaces or even Velcro, a strap, a zipper, are not covered by this warranty.
- Damage caused by chemicals, improper maintenance, transformation or modification are not covered by this warranty.
- Damage and breakage resulting from abuse, improper use and neglect will totally void this warranty.
Boots Specific Matters
- Damages caused by force-dried with direct heat sources (electric baseboard heater, hair dryer, machine dryer, heat gun, Etc) are not covered by this warranty. NOTE: The level of moisture in your boots is always high after riding, you should always remove the insoles after your ride.
- If using Crank Brothers®, Time®, or Look® 2-bolt pedals with your Quilo clipless boots, the cleats must be installed with the shim and/or shoe shield provided with the pedals. Failure to do so resulting into outsole damage are not covered by this warranty.
Shipping
To return a product, you must mail it to: Blivet Sports, 5237 Boulevard Wilfrid-Hamel, suite 130, Quebec, P.Q., Canada, G2E 2H2
You will be responsible for paying your own shipping costs to return your item. Shipping costs are non-refundable.
Depending on where you live, the time it takes to receive your exchanged product may vary.
If you are shipping an item over $ 75, you should consider using a delivery service that allows you to track the shipment or purchase delivery insurance. We do not guarantee that we will receive your returned item.