The bottles can be folded up using the elastic and can hook onto your bag. The bottles do not leak easily and are good quality and are well made.Eco-friendly material BPA free silicone .
Bottle lid：Food grade PP
Bottle body：Food grade silicone
Temperature：High 230℃，low-30℃
Food grade silicone, in line with European and American standards
Safe and environmentally friendly, non-toxic and harmless
Health Guaranteed, BPA Free
PP bottle cap, healthy and safe.