1. Please cover the wrap in a wet towel before heating. Place room temperature wrap evenly spread in the centre of a clean microwave turntable, not touching the sides of the oven. Ensure that any additional microwave features are turned off, such as "browning".

2. Heat in the microwave for 60 seconds (800W) or 40 seconds (1000W). If reheating, heat for an additional 15 seconds (800W) or 10 seconds (1000W). Please do not exceed 100 seconds total heating time.

3. Check to ensure temperature is suitable before application. Before reheating, check if the temperature of any part of the pack is too hot. Knead and rotate the pack to disperse heat evenly.

At Kosi we specialise solely in really great quality, comfy & effective heat packs.

Please do not wash your Kosi, spot clean with a damp cloth only.

Many people like to purchase two Kosi’s, one to keep at home and one to keep in the office (you also get a nice discount for two!)

Kosi has a very mild earthy smell, that you will only notice when you smell it really closely.

Kosi’s shelf life is 2-3 years. Please ensure you keep in a cool, dry place to prolong its condition. For best results, store your Kosi in the zip lock plastic bag it arrived in, this will greatly improve the shelf life and ensure it is always clean and dry.

Standard shipping in Australia will take 2-5 business days, express shipping is available for an additional charge. The average time for international shipping from Australia is 15 days, however some countries might take more than 25 days. Express shipping is also available to international orders for an extra charge.

Yes! You will receive a cute Kosi carry bag with your order, to help you get it safely from A to B.

Yes. We currently have two sizes available. The first size fits extra small - medium (XS-M) and the second fits large - two x extra large (M-2XL).

The small size is suitable for a waist up to 92cm and the larger size is suitable for a waist up to 120cm. The small size is slightly taller (25cm) to fit snuggly to a smaller torso and the larger size is shorter (20cm) to fit comfortably on the widest part of your torso.

We welcome all feedback on sizing to ensure we are catering to all body types.

Please measure your waist and use this to help you choose the correct size for you.

We have sizing guidelines on both sizes to assist you. If you could fit either size, you should select by preference on the height of Kosi.

Some prefer more torso coverage which comes with the XS-M size, and some prefer the height of the M-2XL which will not come up as high under the bust.

Please keep your Kosi in a cool, dry place and ensure you keep it clean as Kosi can only be spot cleaned.

We recommend placing a sheet of paper towel on your microwave plate before heating to protect your heat pack.

Please ensure you always fold to heat your Kosi, with the velcro on the inside.

When not in use, we recommend keeping your Kosi in the Kosi carry bag to keep it clean.

Kosi is a traditional heat-pack, with an innovative new design. Kosi's heat retention is in line with any microwavable heat pack.

Everyone has differing skin sensitivity and heat perception. Depending on the strength of your microwave and your perception of heat, Kosi will retain a comfortable heat for 20-30 minutes.

Please note that safety guidelines for all heat packs are that they can only be safely used for periods of 20-30 minutes. Please always consult with your doctor before using Kosi for longer periods. Please refer to the safety booklet that comes with your Kosi.

Kosi contains flaxseeds which are reported to have better heat retention, but please note that while Kosi has superior heat coverage and a more convenient design, it does not provide longer heat retention than any other traditional heat pack.

Kosi will need regular re-heating if you wish to use it for longer periods.

Yes you can order Kosi internationally by emailing info@kosi.au. You will receive a custom shipping quote which will vary by country. Please note that the customs and taxes may vary per country, and is at the discretion of the customer to research before purchasing.