19 times high elastic sponge
30D elastic fabric, soft & comfortable
Self-inflating design can be supported to rapid inflation and deflation.
The first layer: One-way inflation system to prevent air leakage.
The second layer: open to quickly deflate.
Size:18.11*11.81*4.72inch.
Storage size:φ5.9*6.69inch.
Weight: 0.7lb.
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