The GSI Outdoors Fairshare Mug is tough polypropylene mug with insulating sleeve. The 946ml clear polypropylene mug features measurement markings which are handy for measuring out water for freeze dried meals. There is also a carabiner clip loop for attaching the mug to packs. The Fairshare mug has a secure screw on lid and a foam insulated sleeve to prevent the heat escaping your warm drink. GSI Outdoors Fairshare Mug Features Clear Polypropylene Removable insulation sleeve Screw on lid 946ml capacity Weight:193g GSI Outdoors Fairshare Mug