A 600ml / 20 fl oz borosilicate glass bottle with a protective non-slip sleeve, convenient carry loop.  Full glass and stainless steel contact with water. 100% leakproof High quality stainless steel lid Paracord carry loop BPA free SPEC Glass, stainless steel, nylon, polypropylene and silicone. 600 ml / 20 floz Weight: 340g/0.75Lbs Recyclable Freezer safe FAQ Is the bottle dishwasher safe?B+B recommend all parts are hand washed only in order to avoid water being trapped under the sleeve or shortening the life of the nylon paracord which is not dishwasher safe. For a thorough clean, it is possible to remove the sleeve from the Borosilicate glass body and then reassemble it. Both parts can be cleaned in the dishwasher with the exception of the almond wood fibre sleeve which is not dishwasher safe. Please see B+B How To Video’ on Youtube.How do I clean the silicon seal inside the lid?It is possible to remove the silicone seal on the top for a thorough clean. Use a non sharp cutlery knife to prise and lever the silicone out of the lid. Handwash the lid; the silicone seal can be cleaned in a dishwasher if desired.Can the bottle be used for hot drinks?Yes, the bottle can be used for hot drinks, but be cautious with all hot liquids. The outside sleeve will get hot to the touch and you should make sure the lid is securely screwed on if shaken whilst walking.Is the bottle freezer safe? Yes the bottle is freezer safe, but be careful not to overfill the bottle as water expands by roughly 9% when frozen so ensure there is plenty of room at the top. Allow contents to defrost before attempting to unscrew the top. What is the almond sleeve made from? The sleeve is made from a thermoplastic rubber and 30% FSC sustainably sourced wood fibre. Is the bottle BPA and BPS free?Yes, all parts of the bottle are BPA and BPS free.