I've been using this INSULATED WATER BOTTLE LARGE daily and it holds up well. The 25 fl oz size is right for a long day out, and drinks stay cold for hours as promised, hot drinks too. The wide opening makes filling and cleaning easy, and the thread on the inside of the lid gives a smooth sip. The vegan leather strap is a nice touch for carrying. It's genuinely 100% leakproof so far, no drips in my bag. BPA free stainless steel feels solid. Good all-round bottle.