HG: It's a hard-soled short-nailed football shoe. Hard grass, the number of nails is the same as FG or 1 ratio 2, and the nails are thicker and shorter, which can be used as school ground at ordinary times.
Extended data:
Other types of football shoes:
1, SG: soft soil (soft and moist natural grassland)
Suitable for soft or even muddy grassland, commonly known as "mud land". The spikes of this kind of shoes are usually detachable metal spikes, which are somewhat similar to those worn by track and field athletes. Because they are professional football sports shoes, the requirements for the venue are also very demanding.
2. Hard grassland (hard natural grassland and artificial grassland with long grass stems)
Suitable for grassland with hard surface, referred to as "grassland". FG is also suitable for well-paved artificial turf sites. FG nails are mostly long plastic nails, so they are also called "nails".
3.TF: turf (site for laying artificial turf)
Suitable for hard silt ground and artificial plastic particle field. The spikes of this kind of sneakers can no longer be called spikes, but particles that are integrated with the soles, commonly known as "broken spikes".
4. In: Indoor (indoor venue)
Suitable for polished wood, concrete or other artificial indoor venues. In sports shoes, most of them are flat-bottomed, without spikes, and they are replaced by various lines, commonly known as "tendon bottom".
In short, the harder the site, the shorter the spikes and the fewer spikes (the flat bottom is equivalent to being covered by countless spikes).
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