Sevens kit is light, but it still has to be legal and safe.

What players must wear

The required clothing is straightforward: jersey, shorts and underwear, socks, and boots. The jersey sleeve must extend at least halfway from the shoulder point to the elbow. That requirement applies to sevens because sevens is played under rugby union law unless a sevens variation changes the point.

Teams and competitions may add uniform, colour, numbering, sponsor, or tournament-registration rules, but those are competition administration rules. The match-law question is whether the player is wearing permitted clothing and whether anything is unsafe.

What extra equipment is allowed

Law 4 allows several additional items when they meet the law and World Rugby equipment standards. Common examples include elasticated or compressible supports, shin guards, ankle supports under socks, fingerless mitts, approved shoulder or chest padding, headgear, mouthguards, goggles, studs, head coverings, thin tape, dressings, and player monitoring devices.

The important word is "permitted," not automatic. An item that is usually legal can still become illegal if it is damaged, altered, sharp, abrasive, too rigid, badly fitted, contaminated by blood, or otherwise likely to injure a player.

Mouthguards are strongly recommended

World Rugby recommends that all players wear a mouthguard or dental protector. In practical terms, most serious sevens players treat a mouthguard as standard equipment because tackles, collisions, and falls happen at high speed and in open space.

The law recommendation is separate from a local rule. A school, club, union, or tournament may make mouthguards compulsory for its own competition. Readers should check the active event regulations before assuming a recommendation is the only rule that matters.

Studs must be safe

Boot studs, including moulded rubber studs, are permitted when they comply with World Rugby specifications. The referee or match officials may inspect studs before or during a match, especially if a stud looks sharp, worn, broken, or likely to cut another player.

A player cannot argue that a stud is legal just because it came from a shop or was allowed in a previous match. Officials judge the actual item being worn on the day, including its condition and whether it has become dangerous.

Padding must be approved and soft

Rugby permits some protective equipment, but it is not American-football style armour. Shoulder pads, chest pads, headgear, shin guards, and similar items must fit within the approved rugby standards and must not create a hard or dangerous edge.

Shorts or leggings with padding sewn into them are not allowed under Law 4. Padding also cannot be used as a hidden way to wear rigid plastic, metal, thick hard panels, or other material that increases danger in contact.

What players cannot wear

Players may not wear jewellery, ordinary gloves, communication devices, blood-contaminated clothing, sharp or abrasive items, or items with buckles, clips, rings, hinges, zippers, screws, bolts, rigid material, or projections unless that item is specifically permitted by the law.

This catches many everyday objects: earrings, rings, bracelets, watches, fitness trackers used as ordinary jewellery, hard hair clips, zips on undershirts, metal fasteners, and unauthorised devices. Taping over jewellery is not a reliable solution if the item itself remains prohibited or dangerous.

Bloodstained clothing is treated differently

A player may not wear an item contaminated by blood. If clothing is bloodstained, officials can require it to be changed, cleaned, or covered according to the match process and medical standards.

Law 4 also says the referee must not allow a player to leave the playing area to change clothing unless the clothing is bloodstained. That prevents ordinary kit changes from becoming tactical breaks in a short sevens match.

How officials enforce the rule

The referee can decide at any time that part of a player's clothing is dangerous or illegal. If that happens, the referee orders the player to remove the item, and the player must not take part until the item has been removed or made harmless.

There is a stronger consequence when an official warns a player before the match that an item is banned and the player is later found wearing it in the playing area. In that situation, the law treats the conduct as misconduct, with a penalty sanction and a sending off.

Why this matters in sevens

Sevens has fewer players and much more space, so illegal equipment can affect play quickly. A sharp stud, hard brace, or loose item can injure a tackler in open field, and an unauthorised device or extra accessory can create a match-management issue before the referee has time for a long stoppage.

The short format also makes clothing changes more sensitive. Officials try to resolve obvious problems before kickoff, then manage in-match issues efficiently so safety is protected without turning ordinary kit adjustments into delays.

Where players and viewers get caught

• "Sevens has different kit rules because it is faster": no. Sevens uses rugby union Law 4 unless a specific sevens variation changes the point, and there is no separate sevens relaxation for dangerous equipment.
• "If padding is soft, it is always allowed": not necessarily. It must fit the law and the relevant World Rugby performance specification.
• "Jewellery is fine if it is taped": not as a general rule. Jewellery is prohibited, and officials can still require removal.
• "A smartwatch or comms device is just a fitness item": communication devices are banned, while approved player monitoring devices are controlled by specific standards and competition processes.
• "The referee only checks kit before kickoff": no. The referee can act at any time if clothing becomes dangerous or illegal.

Practical match checklist

1. Confirm the player has the required basic clothing: jersey, shorts and underwear, socks, and boots.
2. Check obvious danger points such as studs, hard braces, jewellery, clips, zips, and loose accessories.
3. Confirm any extra protective item is a permitted item and appears compliant.
4. Order illegal or dangerous items removed or made harmless before the player participates.
5. Deal with blood-contaminated clothing through the blood and medical process.
6. Apply misconduct consequences if a player ignores a pre-match instruction about banned clothing.

Source material

• World Rugby Law 4: Permitted clothing
• World Rugby Regulation 12: Players' dress
• World Rugby Sevens variations
• World Rugby Laws of the Game