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Spareparts Tomboii Boxer Brief

Regular price $146.00

We're going to be totally honest with you here: the SpareParts Tomboii has so much going on that there's simply no way to do justice to it in a web description, but we'll try. If you know us at all, you know that we're incredibly picky about the stuff we stock in our shop, and until the SpareParts Tomboi came out, we rejected every underwear-style harness that came our way. Similarly, until the Tomboii came out, we wouldn't look twice at a boxer brief harness because we've never found one that actually kept a dildo firmly in place - traditionally, boxer brief harnesses are a total goat rodeo. Except for this one.

Everything about this harness is phenomenal. Whether you're looking for some classic penetration play, or want to go full DP on the one you love, this harness has you covered. With two O rings, and three - count them - inserts for a One Touch Bullet, it is an understatement to say that the Tomboii is stimulation friendly.

Spare Parts harnesses are made in a sweatshop-free, fair wage environment in the USA, and much more durable and better made than other similar looking harnesses (we're looking at you rodeoh!)

Packer-friendly, durable, comfortable, and lightweight to boot. 93% Rayon, 7% Spandex.

Harness Sizing: For a good fit, please choose your harness size based on your actual body measurements instead of your usual pant size. To find your size, measure around your lower waist where you wear your underwear (usually right above the hip bones). All measurements below are in inches.

Size Waist Hip Gusset Mid Thigh Leg Opening
XXS 24-32" 24-37" 17-21" 13-22" 13-20"
XS 26-34" 26-39" 18-22" 14-23" 14-21"
S 28-36" 28-41" 19-24" 15-25" 15-23"
M 30-39" 30-44" 20-25" 16-26" 16-24"
L 31-40" 31-45" 21-27" 17-28" 17-26"
XL 33-42" 33-48" 23-31" 18-29" 18-27"
2X 36-45" 36-51" 25-34" 19-31" 19-29"
3X 39-49" 39-55" 26-37" 20-33" 20-31"
4X 41-51" 41-57" 27-38" 21-35" 21-33"
5X 45-55" 45-61" 29-40" 22-37" 22-35"

Specifications for Spareparts Tomboii Boxer Brief

Made of Nylon, Spandex
Made in USA
Ring Diameter: 2"
Weight: 200g

Customer Reviews

Based on 14 reviews

My fav bc they don’t move off your body or stretch for quite some time. Used them for about a year and they’ve been my top tier choice. Buying a new one today🙏🏻

Super hot

My partner has exclusively worn Spareparts harnesses for 10 years. The boxers are a new intro to our sex life, and we keep buying more pairs of them to keep around the house. They're comfortable, durable, they look great, and last. Two dicks up!!

comfy and affirming

my partner loves their new harness! feels confident in it and has even worn it to sleep in!

comfy and affirming

my partner loves their new harness! feels confident in it and has even worn it to sleep in!


I got this for my partner several years ago (I want to say like nearly 5?) and it has stood the test of time! For play, we love to pair it with the NYTC Shilo dildo (because it bends and can be packed more discreetly). I'm now thinking I better get a bigger size of this brief so that I can wear it myself!