FAQ

What is the difference between the collections?

Stripes 01–04 feature our stripe designs. Essential 01–05 feature our logo designs. Each gallery shows the individual colour and design.

What size are the socks?

One size, designed to fit EU shoe sizes 36–44.

What are they made from?

85% cotton, 12% polyester, 3% elastane.

How should I wash them?

Wash inside out on a gentle cycle at a maximum of 30°C with similar colours. Use a mild detergent; do not bleach or use fabric softener. Air dry away from direct heat. Do not tumble dry, iron or dry clean. A mesh laundry bag can help protect the knit and grip. Follow the care label supplied with your socks.

When will my order arrive?

Preparation takes 1–2 business days. After dispatch, estimated delivery is 5–10 business days within Europe and 7–15 business days elsewhere, plus any customs clearance. See Shipping & Returns for Portugal timings and exceptional delays.

Where do you deliver and what does it cost?

Destinations and shipping charges are shown at checkout. EU orders of €75 or more qualify for free delivery. Our Shipping & Returns page lists our current delivery countries and any destination conditions.

Can I return my order?

Our change-of-mind return period is 14 calendar days after receipt to notify us, followed by 14 calendar days to send the goods back. You pay return postage. Excessive handling, workout wear, washing or damage can lead to a documented deduction for actual loss of value. Unsealed goods are excluded only where the statutory hygiene exception applies. We offer no additional voluntary return period; defect remedies remain available. Read Shipping & Returns before returning an item.

How can I contact you?

Email hello@bymathletica.com or use our contact form. Include your order number for order questions.