Quick answer: Match the soleplate to the ground you play on most. Choose FG (firm ground) for natural grass, AG (artificial ground) for long-pile synthetic turf with rubber pellets, TF (turf) for short carpet turf and many Quebec domes, and IN/IC (indoor court) for gyms and futsal floors. If you split time between grass and synthetic, an MG (multi-ground) model is the safest single pair. Wearing the wrong soleplate wears out the studs early and can add stress on knees and ankles.
In Quebec, the question gets real every fall. Outdoor seasons end, teams move into domes and school gyms, and the cleats that were perfect in July suddenly grip too much or not at all. Here is how to read the letters on the box and pick the right pair, for soccer and for the other sports that share the same surfaces.
What FG, AG, MG, SG, TF and IN mean
Every soccer shoe from Nike, Adidas, Puma or Joma carries a short code after the model name. It tells you what the bottom of the shoe is built for, and it matters more than the upper, the colour or the price tier.
|
Code |
Surface |
Sole design |
Typical use in Quebec |
|---|---|---|---|
|
FG (Firm Ground) |
Natural grass, dry to normal |
Molded bladed or conical studs, medium length |
Summer leagues on municipal grass fields |
|
SG (Soft Ground) |
Wet, muddy natural grass |
Fewer, longer studs, often metal-tipped or screw-in |
Rainy spring and fall games on soft grass |
|
AG (Artificial Ground) |
Long-pile synthetic turf (3G/4G) with rubber infill |
Shorter, more numerous, often hollow studs |
Outdoor synthetic fields at schools and city parks |
|
MG (Multi-Ground) |
Natural grass and artificial grass |
Hybrid stud pattern between FG and AG |
Players who switch between grass and synthetic every week |
|
TF (Turf) |
Short carpet turf, hard ground |
Rubber outsole with many small nubs |
Domes with short turf, training, backyard and street play |
|
IN / IC (Indoor Court) |
Gym floors, futsal courts |
Flat gum rubber, non-marking |
School gyms, futsal leagues, indoor 5-a-side |
Two naming details trip people up. Nike often sells its mid-range models as FG/MG, a firm-ground plate cleared for artificial grass too. Adidas uses IN for indoor and sometimes Sala for futsal-specific shoes, like the Predator Club Sala. Same idea: flat sole for hard floors.
Natural grass: FG, MG or SG
For most outdoor games on real grass, FG is the default. All the major 2026 silos come in FG: the Adidas F50 Hyperfast for speed, the Predator for control and striking, the Nike Mercurial Vapor 17 and Superfly 11 for pace, the Phantom 6 for playmakers, and the new Tiempo Maestro, which takes over from ten generations of Tiempo Legend.
If your field turns soft and muddy in April or October, an SG pair gives better bite. SG is a second pair for serious players, not a first purchase for kids. Shop the full range in outdoor soccer shoes.
Artificial grass: AG or MG
Modern 3G synthetic fields are grippier and more abrasive than grass. A pure FG plate can catch in the surface, and the studs wear down faster. Football Boots UK notes that artificial grass is "too grippy for an FG soleplate." Pick AG if most of your games are on synthetic, or MG if you split your week between both.
Turf and domes: TF
This is the big one for Quebec winters. Many domes use short or worn turf where studs feel unstable and turf shoes grip better. Turf shoes also suit hard outdoor ground in late fall. Popular picks include the Mercurial Vapor 17 Pro TF, the F50 Hyperfast League Turf and the Joma Top Flex 26 TF, all in the turf soccer shoes collection.
One caution: domes are not all the same. Some have long-pile 3G turf where AG or MG grips better than TF. Ask your league or check the field before you buy.
Gyms and futsal: IN / IC
On wood or sport-court floors, any stud is dangerous and will mark the floor. Indoor shoes use a flat, non-marking rubber sole with a low profile for ball feel. Good options include the F50 Hyperfast League IN, the Predator League IN, the Predator Club Sala and the Joma Top Flex Rebound 26, found in indoor soccer shoes.
Same surfaces, other sports
Soccer players are not the only ones changing shoes in the fall. The surface logic is the same across the catalogue.
|
Sport |
Outdoor game shoe |
Indoor or dome training |
Shop |
|---|---|---|---|
|
Football |
Molded cleats sized to your position (e.g. Nike Vapor, Alpha Menace) |
Turf trainers or TF soles in the dome |
|
|
Baseball |
Molded or metal cleats, depending on league rules |
Turf shoes for cage and gym practice |
|
|
Ultimate frisbee |
Molded soccer or football cleats on grass |
TF on short turf, IN in gyms |
|
|
Rugby |
FG on firm pitches, SG when wet |
TF for dome sessions |
|
|
Basketball / volleyball |
Court shoes only, non-marking |
Same pair, kept for indoors |
|
|
Cheerleading |
Light cheer shoes with a grippy, flexible sole |
Same pair on the spring floor |
|
|
Running |
Road or trail shoes |
Indoor track: road shoes or spikes if allowed |
Football: If your team trains in a dome all winter, a turf shoe saves your game cleats and is easier on joints during long sessions. Our football cleat guide by position covers linemen versus skill players.
Baseball: Many youth leagues require molded cleats, so check your league before buying metal. Indoor practice on turf calls for a turf shoe.
Cheerleading: Cheer shoes, like the Nfinity Vengeance or Nike Cheer Sideline IV, are built light so flyers are easy to lift and bases keep grip on the mat. Never use outdoor cleats or heavy court shoes on a cheer floor.
Basketball and volleyball: Keep indoor court shoes for indoors only. Outdoor asphalt wears the rubber quickly and brings grit onto the floor, which kills traction.
How to choose in 4 steps
- Count your hours. Where do you play most of your games and practices? Buy for that surface first.
- Add a second pair only if needed. A Quebec player who plays outdoors from May to October and in a dome all winter usually needs FG or MG plus TF.
- Pick the model for your style. Speed (F50, Mercurial), control (Predator, Phantom) or touch and comfort (Tiempo, Copa). Our 2026 soccer cleat guide compares them.
- Fit it in store with your game socks. Leave about a thumb's width at the toe for kids, less for adults who want a snug feel.
FAQ
Can I wear FG cleats on artificial turf? You can, but it is not ideal. Synthetic turf is grippier than grass, so FG studs can catch and wear down faster. If you play on artificial grass often, choose AG or an FG/MG model.
What is the difference between TF and IN soccer shoes? TF shoes have many small rubber nubs for short turf and hard ground. IN shoes have a flat, non-marking gum sole for gyms and futsal courts. Using TF on a gym floor can mark it and feels unstable.
What shoes should I wear in a soccer dome? It depends on the turf. Short or worn turf works best with TF. Newer domes with long-pile 3G turf and rubber pellets work well with AG or MG. Ask your league which surface they use.
Are MG cleats a good choice for kids? Yes. MG works on both natural and artificial grass, which suits kids who play on whatever field the league books. One pair covers most of the outdoor season.
Do turf shoes work for football and baseball practice? Yes. Turf shoes are a common choice for dome and indoor practice in both sports. Keep your molded or metal cleats for game days on grass or outdoor turf.
Can I use indoor soccer shoes for basketball or volleyball? For casual play, yes, since both have non-marking soles. For regular play, court shoes give better ankle support and cushioning for jumping.
Find your next pair at Sports Contact
Not sure which soleplate fits your field? Ask our team and we will match you to the right pair for your league and your field. Browse soccer shoes, compare turf and indoor models for the winter season, and add shin guards and soccer socks while you are at it.
Sources
- Football Boots UK: soleplate types explained
- Footy Headlines: Adidas F50 Hyperfast 2026
- Footy Headlines: Nike Mercurial Vapor 17
- Fútbol Emotion: new Nike Tiempo Maestro
- Sports Contact collections checked Oct. 8, 2026: outdoor, turf, indoor, football, cheerleading.