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Kailas FUGA EX 3 BOA® Trail Running Shoes Women's
SKU: KS263327919310901
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Find Your Perfect Fit | FUGA Size Guide
At FUGA, we engineer trail running shoes for the most rugged terrains and relentless trail adventures. Precision fit is not just about comfort—it's about stability, speed, and unlocking your peak performance.
Men's Shoes Size Chart

Not Sure What is the Right Shoe Size for You?
The following instructions will help you choose.
- Take a piece of paper and a pen or pencil
- Stand with your heels against the wall
- Stand upright, placing your weight on both feet
- Get someone else to draw a line be the tip of your toe
- Measure the length from the wall to the line
- Add 3-5 MM to the measured length (important for toe space)
- Compare the foot length with size chart
| Size EUR | Size UK | Size US | Foot Length (INCH) | Foot Length (MM) | STANDARD WIDTH(MM) | WIDE WIDTH(MM) |
|---|---|---|---|---|---|---|
| 40 | 6 | 7 | 9.6 - 9.8 | 245 - 248 | 86 | 91 |
| 41 | 6.5 | 7.5 | 9.9 - 10 | 252 - 255 | 91 | 96 |
| 41.5 | 7 | 8 | 10 - 10.2 | 255 - 258 | 91 | 96 |
| 42 | 7.5 | 8.5 | 10.2 - 10.3 | 258 - 262 | 96 | 101 |
| 42.5 | 8 | 9 | 10.3 - 10.4 | 262 - 265 | 96 | 101 |
| 43 | 8.5 | 9.5 | 10.4 - 10.6 | 265 - 268 | 101 | 106 |
| 44 | 9 | 10 | 10.7 - 10.8 | 272 - 275 | 106 | 111 |
| 44.5 | 9.5 | 10.5 | 10.8 - 10.9 | 275 - 278 | 106 | 111 |
| 45 | 10 | 11 | 10.9 - 11.1 | 278 - 282 | 111 | 116 |
| 46 | 10.5 | 11.5 | 11.2 - 11.3 | 285 - 288 | 116 | 121 |
| 46.5 | 11 | 12 | 11.3 - 11.5 | 288 - 292 | 116 | 121 |
| 47 | 11.5 | 12.5 | 11.5 - 11.6 | 292 - 295 | 121 | 126 |
| 48 | 12.5 | 13.5 | 11.6 - 11.8 | 295 - 300 | 126 | 132 |
Women's Shoes Size Chart

Not Sure What is the Right Shoe Size for You?
The following instructions will help you choose.
- Take a piece of paper and a pen or pencil
- Stand with your heels against the wall
- Stand upright, placing your weight on both feet
- Get someone else to draw a line be the tip of your toe
- Measure the length from the wall to the line
- Add 3-5 MM to the measured length (important for toe space)
- Compare the foot length with size chart
| Size EUR | Size UK | Size US | Foot Length (INCH) | Foot Length (MM) |
|---|---|---|---|---|
| 36 | 3.5 | 5.5 | 8.9 - 9.1 | 227 - 230 |
| 36.5 | 4 | 6 | 9.1 - 9.2 | 230 - 233 |
| 37 | 4.5 | 6.5 | 9.2 - 9.3 | 233 - 237 |
| 37.5 | 5 | 7 | 9.3 - 9.4 | 237 - 240 |
| 38 | 5.5 | 7.5 | 9.4 - 9.6 | 240 - 244 |
| 39 | 6 | 8 | 9.7 - 9.8 | 247 - 250 |
| 39.5 | 6.5 | 8.5 | 9.8 - 10 | 250 - 253 |
| 40 | 7 | 9 | 10 - 10.1 | 253 - 257 |
| 41 | 7.5 | 9.5 | 10.1 - 10.2 | 257 - 260 |
Gloves Size Chart
| Category | Size (MM) | S | M | L |
|---|---|---|---|---|
| Women's | Palm Circumference | 165-180 | 180-198 | - |
| Middle Finger Length | 70 | 78 | - | |
| Men's | Palm Circumference | - | 200-213 | 213-230 |
| Middle Finger Length | - | 82 | 93 | |
| Unisex | Palm Circumference | 180-198 | 200-213 | 213-230 |
| Middle Finger Length | 78 | 82 | 93 | |
![]() | ① Finger Length: Measure from tip of middle finger to base of palm ② Palm Circumference: Wrap around widest part of hand (fingers together) | |||
Socks Size Chart
| Category | Sock Size | Foot Length (MM) | EU Shoe Size |
|---|---|---|---|
| Unisex | S | 240-260 | 37-39 |
| M | 260-280 | 40-42 | |
| L | 280-300 | 43-45 | |
| Men's | M | 240-260 | 40-42 |
| L | 260-280 | 43-45 | |
| Women's | S | 200-220 | 35-37 |
| M | 220-240 | 38-40 |
Recommended use
Mixed terrain
Materials
Upper: Engineered mesh / TPU film
Bottom: Vibram Megagrip outsole
Lining: Sandproof and breathable lining
Shipping & Delivery
Free shipping for orders over €100
Shipping Details:
- Standard Shipping: 7-15 business days
- Express Shipping: 3-5 business days
Product Care
Trail Running Shoes Care Guide
Notes
- Avoid prolonged wear in high-temperature conditions.
- Do not use road running shoes for trail running.
- Avoid contact with sharp objects.
- It is recommended to rotate between two pairs of shoes to extend lifespan.
Cleaning & Washing
- Prepare mild detergent, an old toothbrush or soft brush, cardboard, cloth, and stain remover (do not use strong or aggressive cleaning agents).
- Outsole: Keep dry. Bbrush off mud with a stiff brush.
- Upper: Remove laces and insoles. Brush off dust and dirt with a soft brush. Soak briefly in warm, soapy water, gently brush off remaining dirt, then rinse.
- Insoles: Clean with mild soapy water or a baking soda solution. Rinse and air dry.
- Laces: Rinse directly with clean water.
- Remove insoles and allow shoes to air dry in a cool, dry place. Insoles may be placed in a well-ventilated, sunny area to dry.
Features
●The BOA® Fit System delivers micro-adjustable, precision fit engineered to perform in the toughest conditions
●The BOA® Fit System is guaranteed for the lifetime of the product on which it is integrated
●Outsole pattern inspired by tyre tread
●Multi-directional triangle lugs on forefoot provide powerful grip on uphill trails
●Increased forefoot width by 4% and heel width by 15%
●Vibram Megagrip outsole offers unparalleled grip on wet and slippery surfaces
●Upgraded EVA midsole with 20% rebound improvement for lightweight cushioning rebound
●KAILAS 4-point gaiter holder system prevents debris from entering
●Trapezoidal heel design to increase stability of the heel center of gravity
One-Click Dial. Precise Fit
BOA® Fit System – Pull up the dial for instant release, push and turn for quick tightening, delivering precision fit and no-slip hold
Lasting Comfort. Enduring Cushion
ECCEVAI Ultra-thick Rebound Midsole offers enduring cushion for a lasting comfort for both long walks and runs
Conquer Wet & Slippery. Power Grip
Vibram MEGAGRIP outsole with 4mm lugs and a zoned functional design brings unmatched grip maintained across all terrains & conditions
Compare Our Models

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Women’s DU 2 BOA
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Women's Black Solitude DU 2 BOA®
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Women’s Black Solitude DU 2 GTX BOA®
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Women's YAN GTX BOA®
Customer Reviews
Le laçage BOA se règle en un tour de molette.
The BOA lacing can be adjusted in one turn of the wheel.
Cierre BOA perfecto para trail de 20 km en terrenos duros.
Perfect BOA closure for 20 km trails on hard terrain.
Testé sur 21 km de sentiers alpins avec passages techniques. Le Vibram accroche parfaitement sur les roches mouillées. Le BOA se règle sans s'arrêter. La largeur avant-pied apporte un confort réel sur la durée. Idéal pour les parcours mixtes exigeants.
Tested on 21 km of alpine trails with technical passages. Vibram grips perfectly on wet rocks. The BOA can be adjusted without stopping. The forefoot width provides real comfort over time. Ideal for demanding mixed courses.
Scarpa da trail femminile ben bilanciata. Il BOA calza alla perfezione. Ammortizzazione reattiva, ottima per lunghe distanze. Soddisfatta.
Well balanced women's trail shoe. The BOA fits perfectly. Responsive cushioning, great for long distances. Satisfied.























