YESO Oxford Water-resistant Sling Bag - Crossbody Chest Pack For Men Women - Travel Hiking Sport Sling Shoulder Backpack Bags Linen-like special Oxford fabric of the sling bag is featured with the natural style of linen, and it avoids the shortcomings of linen, which is not waterproof and not wear-resistant. It is featured with 4P level strong water resistance and is more wear-resisting. Gray environmentally friendly buckle. Round puller buckle, which is more convenient to use The specially designed size conversion metal buckle of the sling backpack enables the shoulder pad to be increased to 1 inch, so that your shoulders can be more comfortable and relaxed Small/High:10.23 inch, width:5.51 inch, thick:1.97 inch. about 240g .Large/High:11.81 inch, width:6.3 inch, thick:2.36 inch. about 290g . X-Large/ high:12.6 inch , width:7.08 inch thick2.76 inch.