Store copy on Mammoth and Red Tiger is ultra-soft / liquid silicone. Prices $39.99 and $24.99.
The problem this search actually is
You want a soft band.
What to buy
Mammoth Ring ($39.99). A stretch silicone ring. Store lists 1.5 in oval inner size, 2.5x stretch, erect girth 4.5 to 7.75 in.
Red Tiger ($24.99). Three silicone rings. The store does not publish inner diameters.

Mammoth Force
Mammoth Ring
Stretch silicone ring. Store lists oval inner size 1.5 in and a 2.5x stretch.
4.6 from 15,000+ reviews
Free shipping over $50 • Discreet packaging • Ships from Huntington Beach, CA

Mammoth Force
Red Tiger
Three silicone rings. The store does not publish inner diameters.
4.6 from 15,000+ reviews
Free shipping over $50 • Discreet packaging • Ships from Huntington Beach, CA
What not to buy
A rigid ring from another shop.
If you are still comparing brands
The head-to-head pages live under vs . Alternatives to a named device live under alternatives . Measure before you order a ring: sizing guide .
Safety
The Mammoth, Dragon and Red Tiger product pages say thirty minutes maximum and never while sleeping. Remove at once on numbness, pain, coldness or a dark colour change.
