Terms & Conditions

Last updated: 20 October 2026

1. Seller and scope

BYM Athletica is operated by EVB, UNIPESSOAL LDA, Portugal, NIF 519099281. Registered and return address: Calçada das Necessidades 10, Apt. 501, 1350-214 Lisboa, Portugal. Contact: hello@bymathletica.com.

These terms govern purchases from our online store. Orders are for personal use; wholesale and resale arrangements require a separate agreement. You must have legal capacity to place an order and provide accurate contact, delivery and payment information.

2. Products, fit and safe use

Our socks are one size, designed for EU shoe sizes 36–44, with 85% cotton, 12% polyester and 3% elastane. Fit also depends on individual foot shape. Review the description and size information before ordering. Screen settings may cause minor colour differences; this does not excuse delivery of a different design or materially different product.

Grip socks do not eliminate the risk of slipping, falling or injury. Grip depends on fit, the surface, moisture, cleanliness and wear. Use on suitable, clean, dry surfaces, follow studio instructions and stop using socks with worn or damaged grip. Follow the supplied care label. Normal wear, accidental damage and deterioration caused by misuse or failure to follow care instructions are not manufacturing defects, unless an underlying lack of conformity is responsible.

3. Prices, payment and orders

Prices are in euros and include applicable VAT where indicated. Delivery charges and any other charges collected by us appear before payment. You authorise payment using a method you are entitled to use. Retain your order confirmation and check it promptly; tell us immediately about any error.

We may request proportionate information to verify an order or payment. Before accepting an order, we may decline it for unavailable stock, a payment failure, reasonably suspected fraud or unlawful activity. We will explain any material order issue and promptly refund sums collected for an order we cannot fulfil. We will not increase an agreed price or substitute goods without your agreement. Obvious pricing or listing mistakes will be addressed under applicable law; they do not give us an unrestricted right to cancel an accepted contract.

You can request cancellation until the item is fulfilled (dispatched) through Returns and cancellations in your customer account or by emailing hello@bymathletica.com. After dispatch, the return procedure applies without limiting statutory withdrawal rights. Requests to amend order details depend on fulfilment progress and cannot be guaranteed once processing begins.

4. Promotions

WELCOME10 is a 10% first-order offer for subscribed customers, limited to one use per customer and not combinable with other discounts. Offers have no cash value. Creating multiple identities or accounts to evade an offer's conditions is prohibited. We may reject ineligible redemptions and investigate evidenced abuse, without withholding a refund or other remedy required by law. A refund is based on the amount actually paid for the returned items, with order discounts allocated proportionately. Future changes to promotions do not change accepted orders.

5. Delivery and customer information

Available destinations, charges and estimates are shown at checkout. Preparation normally takes 1–2 business days. Transit estimates exclude preparation and customs clearance. See Shipping & Returns.

Provide a complete address, any required delivery information and an email you monitor. Contact us promptly about address mistakes, failed delivery or missing parcels so we can investigate. Documented additional costs caused by customer-supplied incorrect information may be charged only where legally recoverable and disclosed before re-dispatch. We do not apply automatic penalties for a failed delivery or treat a carrier scan alone as conclusive proof in a dispute. Delivery risk remains with us until you or your nominated recipient receives the goods, except where the law provides otherwise.

6. Returns and refunds

We provide the statutory 14-day withdrawal period, with no additional voluntary change-of-mind extension. You pay direct change-of-mind return postage and must return the goods within the statutory return deadline. Handling beyond necessary inspection may result in a documented deduction for actual loss of value. Full procedures, return address and refund conditions are in Shipping & Returns.

Hygiene seals

Keep any hygiene seal intact when considering a return. We refuse change-of-mind returns of unsealed goods where they were supplied sealed and are legally unsuitable for return for health protection or hygiene reasons. This exception is assessed against the nature of the goods and applicable law; a label or opened outer packaging alone does not establish it. Statutory remedies for non-conforming goods remain available.

7. Product complaints

Contact hello@bymathletica.com with proof of purchase and a description of the issue. We may request relevant photographs and inspection of the goods to assess a claim; photographs are not an absolute condition where they cannot reasonably be provided. We distinguish defects from ordinary wear, misuse, improper washing and accidental damage, taking account of the applicable legal burden of proof.

Mandatory conformity rights apply, including the Portuguese three-year period where applicable. The remedy depends on the legal conditions; a complaint does not automatically entitle the buyer to choose any remedy in every case. See Shipping & Returns for the process.

8. Website and intellectual property

BYM branding, photographs, designs and original website content may not be reproduced or used commercially without the relevant rights holder's permission. Do not interfere with the store, attempt unauthorised access, submit fraudulent orders or misuse forms. We may restrict abusive website access while preserving access to information and remedies relating to existing orders.

Third-party links are provided for reference; their operators control their content and services. Temporary website maintenance or an outage does not remove obligations under existing orders.

9. Responsibility

Our responsibility and any compensation are determined by applicable law. These terms do not exclude liability for personal injury, fraud, intent, gross negligence, product liability or any liability that cannot lawfully be excluded. There is no additional voluntary warranty of grip performance, injury prevention or lifetime durability beyond our product descriptions and mandatory obligations.

10. Law, complaints and changes

Portuguese law governs these terms, subject to mandatory consumer protections and jurisdiction rules. Contact hello@bymathletica.com to seek resolution of a complaint. Where competent, consumers may refer a dispute to the Centro de Arbitragem de Conflitos de Consumo de Lisboa. Its jurisdiction and applicable arbitration rules determine whether it can hear the dispute; this reference does not claim voluntary membership or exclude other competent remedies.

The terms in force when an order is placed govern that order. Later changes apply to future orders. Any unenforceable provision does not override mandatory law. Personal information is processed as described in our Privacy Policy.