How to Wear a Gaff: Step-by-Step Guide

Putting on a gaff for the first time can feel a little daunting. There are a few steps involved, and getting them in the right order makes the difference between a tuck that feels secure and comfortable and one that needs constant adjustment.

This guide walks you through the process clearly and practically. I'm Robyn, founder of Gaff and Go, and I've spent years thinking about exactly this. If you want the full picture of tucking before reading this, including all three methods and the step-by-step positioning process, our complete guide to how to tuck trans covers everything in one place.

BEFORE YOU START

A couple of things to check before you put your gaff on.

First, make sure you have the right gaff for your body and your situation. A gaff that doesn't fit correctly won't perform well no matter how carefully you put it on. If you're still figuring out which style is right for you, Best Gaff Underwear: Finding What Works for You is a helpful read before you go any further.

Second, check which way the gaff faces. This is one of the most common things people get wrong the first time. The front panel of a gaff is wider and has more coverage. The back is narrower. Hold it up before you step into it and make sure you have it the right way around. It sounds obvious but it's easy to miss when you're new to it.

THE STEPS

Step 1: Step into the gaff and bring it up to your thighs

Don't pull the gaff all the way up yet. Step into it and bring it up to just above your knees or to mid-thigh and leave it there. This gives you room to tuck everything into position before the gaff holds it in place. Having it already partway up means the final pull is smooth and controlled rather than a scramble.

Step 2: Get into position

Many people find it easiest to do the next steps lying on their back, particularly when starting out. It removes the balance element and makes everything more accessible. Once you're more experienced you may prefer to stand, but lying down is the recommended starting point.

You need to be fully relaxed and soft before you continue. If that's not the case, take a break and come back to it.

Step 3: Guide the testicles into the inguinal canals

Using two or three fingers, apply gentle upward pressure to guide each testicle into its inguinal canal. These are natural spaces inside the pelvis, just above and to the sides of the base of the penis, where the testicles sat before birth. Go slowly. This should feel unfamiliar, possibly mildly uncomfortable, but it should not be painful. If it is painful, stop and rest before trying again.

If guiding the testicles into the canals doesn't feel right for your body, you can move them back and to the sides instead. This is called a semi-tuck and it is a completely valid approach.

Step 4: Pull the penis back between your legs

Once the testicles are in position, gently pull the penis and scrotum back and between your legs. Keep everything in place while you move to the next step.

Step 5: Pull the gaff up and into position

With everything tucked, bring the gaff up slowly from your thighs. Guide it up and over, keeping everything in position as you go. The gaff should hold everything securely in place once it's up. Take a moment to adjust for comfort.

The gaff should feel supportive and secure. It should not feel tight, restrictive or painful. If anything is pinching, pulling or causing discomfort, bring it back down, readjust and try again. Never wear a gaff through pain.

WHAT A GOOD FIT FEELS LIKE

Once the gaff is on and everything is in position, take a moment to move around. Walk, sit down, stand back up. A well-fitted gaff in the right position should stay where it is without you having to think about it. If you're constantly aware of it, something isn't quite right.

A good tuck with a well-fitted gaff gives you a smooth, flat front and the ability to get on with your day without the tuck occupying mental space. That's what you're aiming for.

IF IT DOESN'T GO RIGHT FIRST TIME

It probably won't. That's completely normal and it doesn't mean you're doing anything wrong. Tucking is a skill that gets easier with practice, and your body will become more familiar with the process over time. Give yourself a quiet, unhurried first attempt at home, somewhere you can take your time and untuck easily if you need to.

For a full guide to the safety side of tucking, including how long to tuck, what to watch for and how to look after your body, our tucking safely guide covers everything you need to know.

FINDING THE RIGHT GAFF FOR YOUR BODY

How a gaff wears is directly connected to how well it fits. A gaff that is too small will cause discomfort and restrict circulation. One that is too large won't hold a tuck in place. Sizing correctly, based on your actual measurements rather than your standard clothing size, is one of the most important things you can do.

Our full gaff range covers everything from everyday basics to high-waist styles, sports variants and swim-safe options, all with inclusive sizing. If you're not sure where to start, the range is worth exploring at your own pace.