زجاجة ماء ساخن أو بارد من CURAD

The flexible rubber molds to my back better than any pad I've tried, and the ridges really hold the heat in place. I've used it cold after a long run and hot for cramps, both work exactly as needed.

The ridged rubber really hugs my knee perfectly, and I love that I can pop it in the freezer or fill it with hot water depending on what the day needs. It's held up through constant use this week without any leaks.

The ridged rubber surface gives a firm grip even when my hands are wet after a shower, which is handy. Filling it takes a bit of patience, but the heat retention lasts through a full Netflix episode. Solid for sore necks.