With a bold attitude and athletic cut, Tomboi harness briefs from SpareParts deliver a smooth shot of sex appeal and get right to the chase: let’s do this. And it’s hard to say no, because this bad boi smashes the very boundaries of pleasure, from the super-durable O-ring to the drive-’em-wild mini-vibe pockets. Tomboi slides on and off smoothly, without any chafing buckles, dangling straps, pinched skin, or other baggage to get in the way. Lightweight, breathable fabric means you can wear it all day long, and the hidden inside pocket stashes away anything from condoms to cash. The Rayon is for those who prefer a Cotton or more natural feeling fabric. Rayon is better than cotton as it doesn’t pile like Cotton, it also retains its color and has more bounce back then cotton does, nor does it stain the way cotton does. As for the main difference for users you can use Rayon in water environments but we don’t recommend it as it will absorb water, whereas Nylon repels water. Turn up the pleasure. Two internal mini-vibe pockets (vibes not included) are stitched above and below the O-ring – just beyond bodily contact – to send the perfect pulse of pleasure to both partners. (It’s good to be generous.)85% Rayon, 15% SpandexWaistband 30 – 37″Hip 30 – 45″Gusset 20 – 28″Leg opening 20 – 30″O-ring circumference 5 – 7″O-ring diameter 1.25 – 2.25″Restricted from 3rd party website selling.