Cycling clothing: what the racing rules allow, and what road guidance suggests.

The UCI clothing rules

The articles below are as reproduced in the Japan Cycling Federation's copy of the UCI clarification guide (uploaded March 2026; its exact edition date is unconfirmed). They apply in UCI road, track and cyclo-cross events. Downhill, four-cross, enduro, BMX, trials and indoor cycling have their own clothing rules, which we did not read.

Jersey and shorts: Article 1.3.026

Article 1.3.026 (text modified 1 January 2020) requires a jersey with sleeves and shorts that come above the knee, which may be combined in a one-piece skinsuit. Sleeveless jerseys are forbidden. The guide adds that gloves may not be built into a jersey or skinsuit.

Rain jackets: Article 1.3.030

A rain jacket must be transparent, in the team jersey's colour, or show the team name or logo on the front and back.

No changing the rider's shape: Article 1.3.033

Clothing and accessories, including helmets, glasses, shoes and in-race radios, may not modify the rider's morphology, and non-essential added elements are forbidden. The guide gives examples and limits:

• no "wings" under the arms, and no extension bridging the helmet and the jersey;
• no substances applied to the body for an aerodynamic gain, although protective oils against cold or rain are tolerated;
• clothing may not contain self-supporting or rigid parts when it is not being worn;
• the surface roughness of fabric may vary by no more than 1 mm in profile, and only through threading, weaving or assembly;
• no part of a shoe may come above the ankle;
• on the track, gloves may not be mittens.

Socks and overshoes: Article 1.3.033 bis

Introduced on 15 October 2018, Article 1.3.033 bis limits the height of socks and overshoes: they may not rise above half the distance between the middle of the lateral malleolus (the outer ankle bone) and the middle of the fibula head.

Jersey pockets from 1 July 2026

The UCI Management Committee, meeting on 2 to 4 June 2026 at Desenzano del Garda, banned front jersey pockets from 1 July 2026, except a single pocket used only for a radio. Pockets otherwise go at the rear.

Sanctions

The same June 2026 meeting revised the table of sanctions for non-compliant equipment from 1 July 2026, adding penalties for items riders wear as well as for bike accessories.

Quick reference: UCI clothing limits

The UCI's September 2025 meeting also set price limits on track skinsuits, along with other track equipment, for the Los Angeles 2028 Olympic cycle from 1 January 2027. This site does not give the figures.

Everyday riding: Highway Code Rule 59

For riding on the road in Great Britain, Highway Code Rule 59 (page updated 22 October 2025) is advisory: it uses "should", not "must", and cites no law. It suggests:

• light-coloured or fluorescent clothing in daylight and poor light;
• reflective clothing or accessories, such as a belt or arm or ankle bands, in the dark;
• avoiding clothes that could get tangled in the chain or a wheel, or that could hide the lights.

The Northern Ireland Highway Code gives the same advice in its own Rule 59. Rule 59 also advises a helmet; the helmet standards page covers that. Lights and reflectors, which are a legal requirement at night under Rule 60, are on the lights and visibility page.

What this page leaves to others

This page reports rules and official guidance only. It does not rate fabrics or brands, and it makes no claim about which garments are warmer, faster or more comfortable, because our sources do not establish that. Category guides are in the gear guides.