Climbing is a complete sport that engages the whole body. When practising it, the choice of clothing is crucial. Ill-suited garments can genuinely hold back your progress and even expose climbers to certain risks. So what is the most suitable climbing outfit for each discipline?
What to wear for indoor climbing?
Climbing clothing must offer freedom of movement, comfort, durability and practicality. It is best to avoid clothing that is too baggy, rigid or prone to friction.
For indoor climbing, lightweight clothing is highly appreciated. You can opt for climbing t-shirts or breathable vests. Go for technical fabrics such as polyester or elastane, which wick moisture effectively. Cotton climbing outfits can also be an option for their comfort and durability.
If the gym is cold, you can opt for long-sleeve t-shirts that are supple and stretchy. In any case, go for a fitted cut — not too tight, not too loose. This has the advantage of not restricting movement and not catching on the holds.
For the lower body, several options are available. Climbing trousers are recommended for their technical cut and stretch fabric. They also protect the knees from friction against the wall. Technical leggings are also very popular for their stretchy fabric. In summer, climbing shorts are widely used for their lightness and freedom of movement.
Finally, think about choosing comfortable bottoms suited to wearing a harness for route climbing. Avoid rigid waistbands, poorly placed pockets or thick seams, which can all get in the way.
What to wear for outdoor climbing?
The outdoor climbing outfit depends above all on weather conditions. Climbers are exposed to wind, sun and the abrasion of rock. Clothing must therefore be versatile, robust and protective while always ensuring good freedom of movement.

In the mountains or on multi-pitch routes, the three-layer principle is commonly applied. The base layer consists of a t-shirt or technical base layer. In summer, a lightweight t-shirt works well. In the shoulder season, a long-sleeve merino wool t-shirt is recommended.
Depending on the temperature, you can add a mid-layer such as a technical fleece jacket. If it does not restrict your movement, you can climb in it. Otherwise, keep it on when it is cool, during breaks or while belaying.
Finally, it is advisable to have an outer layer. You can pull on a softshell jacket or a lightweight windproof in windy conditions, or a waterproof jacket in the event of a shower.
To choose the right climbing trousers, an abrasion-resistant model is strongly recommended for outdoor use. Go for a stretch canvas model with pre-shaped knees. This will give you better protection against knocks and scrapes.
The choice between climbing in shorts or trousers depends on your personal preferences as well as the conditions of your outing. While shorts and leggings are popular among climbers, they offer less protection. They are best reserved for short outings, bouldering, accessible crags and low-abrasion rock.

What accessories do you need for climbing?
For safe climbing, certain accessories are essential. First, climbing shoes must be suited to your foot shape and level. Beginners will favour a comfortable pair, while more experienced climbers will prefer tighter shoes for greater precision.
Next, chalk (in powder, ball or liquid form) helps absorb moisture and improve grip. To carry it, you can choose a bag worn around the waist for route climbing or a bucket-style bag for bouldering. You can also bring a brush to clean the holds. For route climbing, add a harness, a belay device, carabiners, a rope, gloves and belay glasses.

Outdoor climbing requires additional specific accessories. First, a helmet is essential on a cliff to protect you from rockfall or knocks against the rock. To protect yourself from the sun, bring a cap, sunglasses and sunscreen. In windy conditions, a buff is highly recommended.
To protect your rope, you can bring a tarp. If you're bouldering, don't forget your crash pad. For extra safety, it's also worth taking a first aid kit, a guidebook and a fully charged phone. If you're heading out for several hours, bring a snack and water too.
A climbing outfit must above all offer comfort and freedom of movement. Indoors or outdoors, your clothing must be suited to your discipline and personal preferences. That way, you can climb safely and make the most of every moment on the wall.
Photo credits: ©Julia Cassou