What to Wear for Training: A Practical Guide for Beginners

Workout clothes do not have to be expensive or special, but they do have to do three things: stay out of the way of your movement, move sweat off your skin, and not chafe you anywhere. Beginners usually spend the most on shirts and the least attention on shoes and socks — which is exactly where the real problems start. Here is what you actually need, how many pieces, and when to replace things.

Fabric: cotton or synthetic

A cotton shirt soaks up sweat and stays wet for the rest of the session and an hour afterwards. Synthetics (polyester or polyamide, usually with 5–10 % elastane) dry in 20–30 minutes and are far easier to live with in a session where you actually sweat. Merino wool at 150–200 g/m² is the best option for cold weather because it insulates even when damp, but it costs more and wears out faster.

Practical rule: for a 45–60 minute gym session, cotton is perfectly fine and often more comfortable against the skin. For running, conditioning work, and anything outdoors below 10 °C, cotton is a bad choice — a wet shirt in the wind will chill you in a couple of minutes.

The top half

Your shirt should be loose enough to press your arms overhead without pulling out of your shorts, but not so loose that it falls over your face during push-ups or on the bench. A sleeve reaching mid-upper-arm stays out of the way on bench press; thin-strap tank tops tend to slide under the bar when you squat.

For women, the sports bra is the most important piece up top. Low to medium support is enough for lifting and walking; running and jumping need high support. The elastic gives out after roughly 60–80 washes, which is 6–12 months if you train three times a week — if it stretches and no longer holds, replace it.

The bottom half

Shorts with a 13–18 cm inseam stay out of the way in both squats and running. Shorter than 10 cm leaves your thighs rubbing on benches and machines; longer than 20 cm bunches behind the knee in a deep squat. Compression shorts or leggings underneath solve thigh chafing, which is the single most common complaint on runs longer than 30 minutes.

Test before buying: do 10 deep squats and 5 lunges in the fitting room. If the waistband digs in, the leg rides up, or the seam presses into your groin, it will not get better in the gym.

Shoes: the piece that matters most

For lifting

Squats, deadlifts, and presses want a flat, firm sole with a heel-to-toe drop of 0–4 mm. Soft running foam compresses unevenly under the heel and steals stability as soon as the weights get heavy. The free alternative: deadlift in socks, if your gym allows it.

For running and conditioning

Here you want cushioning, a drop of 6–10 mm for most beginners, and 0,5–1 cm of space between your longest toe and the front of the shoe. Buy in the afternoon or evening — feet swell 2–4 % over the day, so a morning fitting often ends up too tight. Replace running shoes after 600–800 km, which at 20 km per week is roughly 8–10 months.

Socks and small stuff

• Synthetic or merino socks, not cotton: cotton holds moisture and creates blisters. Get 4–5 pairs.
• Above-the-ankle height protects against rubbing on the shoe tongue and bar scrape on deadlifts.
• For chafing on the inner thighs, under the arms, and around the nipples, a thin layer of petroleum jelly or a similar barrier balm before any session over 45 minutes works.
• Long hair: a tie and a sweatband. Sweat in your eyes mid-squat is not just annoying, it is a safety issue.

Training outdoors: cold and hot

In the cold, dress as if it were 10 °C warmer than it is — the first 5–10 minutes should feel slightly chilly. Three layers: a thin synthetic or merino base against the skin, a mid layer (hoodie or fleece), and a windproof shell. Below 5 °C add a hat and gloves; hands and ears cool fastest and stop working first.

Above 25 °C, and especially over 60 % humidity, go light-coloured, loose, and short, and move the session to before 9 a.m. or after 7 p.m. A brimmed cap helps in direct sun but slows heat loss from the head — take it off the moment you stop in the shade.

What not to buy

Sauna suits and neoprene waist belts do not burn fat. The kilogram that disappears after that kind of session is one litre of water and comes back as soon as you drink. Compression gear is a comfort question, not a results question. A lifting belt only starts to make sense on sets above 80 % of your one-rep maximum, and gloves are pure preference — chalk solves grip better.

How many pieces you actually need

For three sessions a week, 3 shirts, 2–3 pairs of shorts or leggings, 4–5 pairs of socks, and one pair of shoes per type of training is enough. Wash at 30 °C with no fabric softener, since softener clogs synthetic fibres and locks the smell in permanently. Air dry, and never leave wet kit in your bag for more than 2 hours.

When to see a doctor

• Tingling or numbness in the toes that lasts more than 30 minutes after you take your shoes off.
• A blister or graze with spreading redness, warmth, pus, or a fever above 38 °C.
• If you have diabetes or reduced sensation in your feet, get any foot wound looked at the same day, without waiting.
• A rash or skin irritation that does not clear after 7 days away from that garment.
• Heel pain on your first steps in the morning that lasts longer than 2–3 weeks.

The short version

• Synthetics for anything where you sweat hard; cotton only for easy gym sessions.
• Shoes by purpose: flat sole for lifting, cushioning for running, replaced at 600–800 km.
• 13–18 cm shorts and 4–5 pairs of non-cotton socks — blisters usually start at the socks.
• Outdoors, dress for 10 °C warmer than it is; below 5 °C, hat and gloves are not optional.
• Sauna suits and belts are not a shortcut: the kilogram you sweat off is a litre of water.