What this Gymshark review covers

This is a first-party-information guide for UK shoppers considering Gymshark training apparel. It focuses on the parts of a purchase that can be checked before you place an order: the published women’s bottoms size guide, the measurements used in that guide, and the stated returns policy for eligible purchases.

That is a useful buying lens, but it is deliberately narrower than a hands-on product test. The supplied information does not establish how a particular fabric feels after repeated wear, how a specific style performs for running or outdoor use, or whether one collection is more durable than another. Those are item- and use-case-specific questions, so this review does not turn product positioning into unverified performance claims.

Use it to decide whether the available sizing and returns information gives you enough confidence to investigate a particular product. Then check that product’s own page and the terms presented for your order before paying.

Who Gymshark training apparel may suit

Gymshark may be worth putting on a shortlist if you are already looking for training-oriented clothing and are comfortable making a product-level decision rather than relying on a blanket brand verdict. The most suitable buyer is usually one who can define the intended activity, decide the fit they want, take measurements where relevant, and check the individual item before checkout.

For example, a buyer choosing bottoms can make a more informed start when they are willing to compare waist, hip and inside-leg measurements with the published women’s chart. Someone who needs a particular length can also use the listed short, regular and tall inside-leg options as a prompt to inspect the style they are considering. That is more dependable than assuming that a familiar UK dress size will translate to every cut.

The same cautious approach matters if your use case is more specific. If you need clothing for frequent running, cold-weather layering, outdoor protection, compression, pockets, opacity, or a known fabric composition, look for those details on the relevant product page. This guide cannot confirm them from the available evidence.

Gymshark may be less straightforward for shoppers who need independently verified durability or a proven activity-specific feature before ordering. In that case, pause, compare the information available for the exact item, and consider alternatives with the evidence you need.

Sizing and fit checks before you order

Illustration supporting this section For women’s bottoms, start with measurements rather than your usual UK size alone. Gymshark’s published guide covers leggings, joggers, shorts and more, and presents a UK size alongside waist, hip and inside-leg measurements. The listed size range runs from XXS (UK 4–6) to XXL (UK 16–18), with waist measurements from 61 cm to 91 cm and hip measurements from 90 cm to 120 cm.

Take the measurements in the way the guide describes:

  • Measure your waist around its narrowest part.
  • Measure your hips around their fullest part, keeping the tape flat and level.
  • Measure inside leg from the crotch down to the ankle.

Then compare the results with the chart, rather than treating the UK-size column as the only deciding factor. The guide lists three inside-leg options: short at 72.5 cm (28.5 in), regular at 77.75 cm (30.5 in), and tall at 82.5 cm (32.5 in). Those figures help you assess length preference, but they do not guarantee that every bottoms product will be offered in every length or that each cut will fit in the same way.

Before ordering, revisit the product page for the specific leggings, joggers or shorts you want. Check the stated fit description, available size and any product-specific sizing notes. Decide whether you prefer a close, standard or relaxed fit where that information is given, and allow for your own intended use. A measurement-led check reduces avoidable uncertainty; it does not replace checking the actual item and your desired fit.

For a fuller process, see our women’s leggings size guide and how-to-measure-for-activewear guide.

Where the available evidence has limits

The available official material is strong enough to support a pre-purchase sizing process and a return-eligibility check. It is not enough to support broad conclusions about Gymshark’s quality, value, durability or performance across all training apparel.

In particular, it does not provide independent wear testing, comparative fabric testing, long-term wash results, or evidence that a given item is the best choice for running, strength training, outdoor use or everyday wear. It also does not establish that a specific cut will suit every body shape, even where the size guide provides useful measurements.

That distinction matters because a size chart and a returns policy answer different questions. A size chart helps you select a starting size; it does not promise the feel, coverage, stretch, warmth, weather protection or lifespan of an item. Similarly, a returns policy can reduce purchase risk only when your order and item remain eligible under the applicable terms.

Treat product-page details as the next evidence layer. If a feature is essential to your decision, confirm that feature for the exact product, colour and size you intend to buy. If you cannot find adequate information, it is reasonable to delay the purchase or compare alternatives instead of assuming the brand will meet that need.

Returns and purchase-risk checks

AI-generated generic editorial illustration — not a retailer product photo and does not depict the reviewed product or service. Make the policy-based checkout and return-risk checks scannable without implying universal eligibility.

Make the policy-based checkout and return-risk checks scannable without implying universal eligibility Gymshark’s returns policy states that items bought through Gymshark.com or the Gymshark App can be returned within 30 days, provided they remain in their original condition. For online orders, the 30-day period is measured from delivery; for store purchases, it is measured from the purchase date.

Eligibility matters as much as the deadline. The policy says eligible items must be unworn, unused, unwashed and in the same condition in which they were received for a full refund. Gymshark says returned items are inspected, and it may not provide a refund for an item that is damaged, worn or otherwise unsuitable for return.

Check the exclusions before you remove labels or use an item. Underwear and swimwear are non-returnable for hygiene reasons; bottles are also non-returnable, while socks can be returned only when sealed in their original packaging. Personalised items cannot be returned. The policy also says that an item may still be returned after its swing tag has been removed if it is unworn and unwashed, but a return cannot be accepted if the small white care label has been cut out.

The policy describes a final-sale exclusion for items discounted by 60% or more in the US and Canada. Do not assume that wording governs a UK order. Instead, confirm the policy and the product-page and checkout terms that apply to your purchase before placing it. This does not affect statutory rights.

For more context, see our online clothing returns guide and activewear sale shopping guide.

A practical Gymshark buying checklist

Use this short checklist to turn the available information into a decision:

  1. Define the job the item needs to do. Is it for general training, occasional running, layering, or everyday wear? Write down any non-negotiable feature you need.
  2. Inspect the exact product page. Confirm the size availability, stated fit and any feature you need rather than applying a claim from a different collection or style.
  3. For women’s bottoms, measure waist, hips and inside leg, then compare them with Gymshark’s published chart. Consider whether short, regular or tall length is relevant to the item you want.
  4. Read the returns terms before checkout. Check the 30-day timing, condition requirements, hygiene exclusions, personalised-item rule and any sale wording shown for your order.
  5. Judge the total checkout value for you, including whether the item’s documented information and return conditions give you sufficient confidence.

This framework is most useful when it leads to a conditional decision: proceed if the product-level information, measurements and applicable terms meet your needs; pause if they do not. Compare alternatives if you require independently verified durability, technical outdoor protection or a particular performance characteristic that is not documented for the item.

[Browse Gymshark training apparel]

Frequently Asked Questions

How long do I have to return eligible Gymshark items?

Gymshark’s policy states that eligible items purchased through Gymshark.com or the Gymshark App can be returned within 30 days. For an online order, the period starts when the order is delivered; for an in-store purchase, it starts on the purchase date. The item must also meet the policy’s condition and eligibility requirements, so check the terms applying to your order before purchase.

Measure your waist at its narrowest point, your hips at their fullest point, and your inside leg from crotch to ankle. Compare those measurements with Gymshark’s women’s bottoms chart rather than relying only on your usual UK size. The guide lists short, regular and tall inside-leg measurements, but you should still check the product page for the exact style and size availability.

Can I return Gymshark underwear, swimwear or personalised items?

Gymshark’s published policy says underwear and swimwear cannot be returned for hygiene reasons, and personalised items cannot be returned. It also identifies other restrictions, including non-returnable bottles and a sealed-original-packaging requirement for returnable socks. Confirm the current terms shown for your UK order before checkout.

Can I return an item if I removed the swing tag?

According to Gymshark’s policy, an item can still be returned without its swing tag if it is unworn and unwashed. However, the small white care label must not have been cut out, and the item must otherwise meet the return conditions. Keep the item in returnable condition until you have decided to keep it.

Sources

Editorial information: About our editorial team · Read our editorial policy · Read our affiliate disclosure.