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Size Guide
Size Guide

Our sizing guide relates to approximate body measurements for the ages listed. Because every young body is different and every body likes a certain fit or feel when it comes to activewear, a sizing guide has been provided to be used as reference to assist you in making the best choice.


*If you do require a size exchange once your IMPI gear arrives, please email us at and we can help in sorting out an exchange so long as the items have not been worn.

Size guide

The best way to choose your size is to take your measurements as per the diagram and match it to the size tables above. Please measure and choose carefully so you are not disappointed when your Impi garment(s) arrives. 

*Please note there a slight variation relevant to ladies size predominantly in the bust area.

We know its not always easy to purchase online, so we have provided some of our model's measurements to help you work out which size will fit you best. Most of our running models prefer a snug fit for the shorts, so have opted for a smaller size in the running shorts and a size up in the strappy crop.



teen running apparel

Annabelle on the left age 17 yrs wears Girls 14/T6  and Girls 16/T8 strappy running bra

 Running crop and shorts teens

Miranda age 15 on the left  wears Girls 16 /T8 elastic running shorts, Girls 16/ T8 strappy running bra
Mary age 16 on the right  wears Ladies 10 in running crops and Girls 16/T8 in running shorts

Mia age 14 yrs wears Girls 14/T6 running shorts and Girls 14/ T6 running crop

Zara age 13 yrs wears Girls 12/T4 running shorts and Girls 12/T4 running crop

teen running apparel

Kebe age 12 yrs wears Girls 12/T4 running shorts and Girls 14/T6 running crop


teen running apparel

Claire age 10 wears Girls 10/ T2 running shorts and Girls 10/T2 in running crop

teen running apparel

Violet age 8 on the right wear Girls 8 /T0 in both running shorts and crop



  • Free shipping over $100
  • 14 day returns
  • Customised fit for teens and tweens


Shopping for someone else but not sure what to give them? Give them the gift of choice with an Impi Sportswear gift card.

Gift cards are delivered by email and contain instructions to redeem them at checkout. Our gift cards have no additional processing fees.


Customer Reviews

Based on 4 reviews
Marna Maas
Very practical gift 🎁

Great practical way to give someone a gift to suit their own taste !
Great quality activewear so can’t go wrong 🤩

Ben Wallace
Gift card purchase

Easy purchase and received immediately after the order was placed

Greg Marshall
Good customer service

When asking about our concern with delivery the service from Impi was awesome .
Would buy again but be more patient with delivery 🚚

Aspen Anderson
Amazing thank you so much

An amazing quick gift for anyone


IMPI Sportswear has been designed specifically for teens and pre-teens, so you may find the "fit" a bit smaller. 

While its best to measure as per our size guide page, here are some more ways to work out your preferred size remembering everyone likes a slightly different "fit".

As a rough guide, our sizes are similar to the small ladies sizes 0-8. Bear in mind the bust/chest measurements will be slightly smaller for IMPI sizes as the product is designed for teenagers. To show this slight variation we have placed a T in front of the relevant ladies size.

Our Size









Similar to ladies sizing





Ladies XS/6

Ladies S/8

Ladies M/10

Ladies L/12











 We know its not always easy to purchase online, so please do not hesitate to contact us if you need any further assistance in selecting the right size for you! We value your feedback and would love to know how our garments are fitting and where we can improve as we grow our business. Contact us at



For postal orders, we use Sendle and Australia Post :-

  • Queensland orders should arrive within 5-7 business days after despatch.
  • All other states please allow 7-14 business days delivery, delivery times are thankfully improving as Covid restrictions ease, but Australia Post volumes increase even further during December so please place your order early to avoid disappointment.
  • International orders will depend on the destination but typically orders arrive with 21 days of despatch. Please note that local tariffs and duties incurred from international parcels will be for the receivers account.

We send parcels with authority to leave in a safe place without signature, if there is no safe place a card may be left for you to collect from an alternate collection point. All deliveries are made on working business days (no week-ends or holidays). Unfortunately we cannot be held liable for any lost or stolen parcels.


 Cost of shipping within Australia:

  • FREE shipping for orders over $100.00.
  • Sendle compostable satchel parcel, $7.00 with tracking.
  • Australia Post EXPRESS Post, $11.00 with tracking.

International Shipments:

  • New Zealand -
    • Shipping over $150.00 Free
    • $18.20 - 1 to 2 items
    • $24.00 - 3 to 7 items
  • US & Canada -
    • Orders over $200.00 Free shipping.
    • $25.00 - 1 to 3 items
    • $38.00 - 4 to 7 items
  • Germany & Switzerland -
    • Orders over $200.00 Free shipping.
    • $28.00 - 1 to 3 items
    • $37.00 - 4 to 7 items



    We understand mistakes happen so at Impi Sportswear we are more than happy to exchange garments due to incorrect fit or change of mind provided that the item is returned in the same condition it was received.

    If you are not happy with your new Impi product, we will consider refunding or exchanging the item(s) provided the item has not been damaged.

    Sale items however may not be returned or exchanged unless they have a manufacturing fault.

    Our policy lasts 14 days. If 14 days have gone by since your purchase, unfortunately we can’t offer you a refund or exchange.

    To be eligible for a return, your item must be unused, unwashed and in the same condition that you received it.

    To complete your return, we require a receipt or proof of purchase.

    Any item not in its original condition, is damaged or missing parts for reasons not due to our error, or are returned more than 14days after purchase, can unfortunately not be refunded or exchanged."

    Refunds (if applicable)
    Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.
    If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within a certain amount of days.

    Late or missing refunds (if applicable)
    If you haven’t received a refund yet, first check your bank account again.
    Then contact your credit card company, it may take some time before your refund is officially posted.
    Next contact your bank. There is often some processing time before a refund is posted.

    If you’ve done all of this and you still have not received your refund yet, please contact us at

    Sale items (if applicable)
    Only regular priced items may be refunded, unfortunately sale items cannot be refunded.

    Exchanges (if applicable)
    We only replace items if they are defective or damaged due to a manufacturing fault. If you need to exchange it for the same item, send us an email at and we will provide with the return address.

    If the item was marked as a gift when purchased and shipped directly to you, you’ll receive a gift credit for the value of your return. Once the returned item is received, a gift certificate will be mailed to you.

    If your item was a fabulously generous gift from someone the refund will need to be directed through the purchaser so that we are able to process the refund to the purchaser directly, following their method of payment. OR offer you an exchange if you do not want to follow the refund procedure.

    To return your product, please email us at for details on where to return the item.

    You will be responsible for paying for your own shipping costs for returning your item. Shipping costs are non-refundable. If you receive a refund, the cost of return shipping (if applicable) will be deducted from your refund.

    Depending on where you live, the time it may take for your exchanged product to reach you, may vary.

    If you are shipping an item over $75, you should consider using a trackable shipping service or purchasing shipping insurance. We don’t guarantee that we will receive your returned item.

    All customs duties and taxes are for the receivers account and are not calculated into shipping costs.