You lace up your ASICS Trabuco Max 5, glance down, and see two small black loops stitched right on the center of the tongue. You’ve probably wondered: are they for hanging the shoe? A style detail? Something for your Gaiter? Neither. They are lace keepers — simple but clever features designed to hold your extra lace length out of the way. If you’ve been ignoring them or cutting them off, you’re missing out on a clean, snag-free trail run.
Quick Answer
Those black loops are lace keepers (sometimes called lace locks or tongue keepers). Their only job is to tuck the excess lace after you tie your shoes. Instead of having long dangling ends that can catch on rocks, roots, or your other foot, you loop the lace through the keeper and cinch it down. That’s it. No hidden snap, no electronic gadget, no extra buckle. Just a fabric loop sewn into the tongue to keep your laces tidy and out of harm’s way.
Most trail shoes from ASICS, Hoka, Salomon, and other brands include them. On the Trabuco Max 5, they sit at the center of the tongue because that’s the natural spot where the laces cross after you tie a standard knot. You can use them with any lace type — flat, round, or elastic.
Why This Happens
Shoe designers aren’t adding loops for decoration. They solve a real trail-running problem: loose lace ends are a hazard. On a trail, a long lace can:
- Snag on a branch and yank your foot off balance.
- Get caught under your opposite foot while striding, tripping you.
- Unravel your knot over time, causing your shoe to loosen mid-run.
- Collect mud, snow, or debris and add weight.
The solution is a simple, low-cost keeper. Instead of relying on double knots (which can be hard to untie after a muddy run) or cutting laces (which limits adjustability), brands sew a small loop into the tongue. You tuck the lace into the loop, and the friction holds it in place. It’s lightweight, doesn’t add bulk, and works with any lacing system.
It’s the same principle behind the rubber lace keepers on Salomon quick-lace systems, just executed with fabric. The loop is positioned at the center of the tongue because that’s where the two lace ends meet after you tie a standard knot. On some shoes, you’ll find two loops (left and right) or a single loop in the middle. Either way, the goal is the same: hide the excess, keep the shoe streamlined.
Step-by-Step Method
Using a tongue lace keeper is straightforward, but many runners do it wrong or skip it entirely. Here’s the correct sequence:
- Lace your shoes normally. Pull the laces snug but not too tight. Tie a standard bow knot as you usually would. Do not double-knot yet.
- Identify the keeper. It’s the small fabric loop sewn onto the center of the tongue, just below the top edge. On the Trabuco Max 5, it’s black and about 1 cm wide.
- Take one lace end and thread it through the loop. Go from bottom to top (under the loop, then pull through). Do this for each lace end if there is a single loop. If there are two loops, use one per lace.
- Pull the lace end tight. The keeper should hold it firmly without slipping. If the lace is long, you can loop it through twice for more friction.
- Tie a simple knot above the keeper if you want extra security (optional). The keeper itself should prevent the lace from flopping.
- Test it. Walk a few steps. The excess lace should stay tucked, not dangle below the loop.
That’s all. No special technique needed. The keeper works with any knot style, but it works best when you leave about 6–10 cm of lace after tying. If your laces are extremely long (common on trail shoes), you may need to wrap the lace around the loop twice.
Common Mistakes
Even with a simple feature, runners often misuse lace keepers. Here are the most frequent errors:
1. Threading the lace through only once when it’s too short. If the lace end is very short after tying, the keeper may not hold it. The fix: make your initial bow loops slightly smaller so you have more lace to work with. Or use the loop for the longer end first.
2. Tucking the lace into the loop but not pulling it tight. A loose tuck will slip out during a run. Always pull the lace end firmly through the keeper until it’s snug against the fabric.
3. Using the keeper as a lacing eyelet. Some runners try to lace through the loop as if it were a speed lace hole. Don’t. The keeper is too weak to handle tension from lacing. It’s designed only to hold excess, not to adjust fit.
4. Cutting the loop off because “you don’t need it.” Once you remove the loop, you lose the ability to stash excess lace neatly. You’ll have to double-knot or let laces dangle. If you cut it off, you can’t sew it back without damaging the tongue.
5. Expecting it to work with very thick or stiff laces. Most trail shoe laces are flat and flexible, but some runners swap in round, waxed, or braided laces. Those may slip out of the fabric loop easily. Stick with the original laces or match the thickness closely for the keeper to hold.
6. Ignoring the loop and using a rubber lace tuck instead. That’s fine if you prefer elastic keepers, but you’re carrying extra gear when the built-in solution already works. The tongue loop is always there, never lost, and weighs nothing.
Checklist or Decision Table
Use this quick-reference table to decide when the tongue lace keeper is your best option vs. alternative lace management methods.
| Feature | Tongue Lace Keeper | Rubber Lace Lock | Double Knot | Lace Cutter (shorten laces) |
|---|---|---|---|---|
| Ease of use | Very easy | Easy | Easy | Permanent, requires tool |
| Adjustable on trail? | Yes, re-tuck any time | Yes, but can slip | No, must untie | Not adjustable once cut |
| Weight | 0 g (built-in) | ~2 g | 0 g | 0 g |
| Works with all laces? | Flat laces best | Yes | Yes | Depends on cut end |
| Risk of coming undone | Low if properly tucked | Medium (can pop off) | High (unravels over time) | None (if melted end) |
| Removable? | No (sewn in) | Yes | N/A | Yes |
| Best for | Trail, ultra, muddy conditions | Road, track, casual | Short runs, no obstacles | When laces are consistently too long |
Verdict: For trail running, the built-in tongue keeper is the most practical and least fiddly option. Use it by default. Only consider alternatives if your laces are unusually thick or if you prefer a more secure rubber lock for technical terrain.
When This Advice Does Not Apply
The tongue lace keeper is not universal. Some scenarios where it may not work or be present:
- Shoes without a tongue keeper: Many road shoes, dress sneakers, and older trail models lack this feature. Check before buying if you rely on it. If absent, use a separate lace lock or double-knot.
- Elastic laces (no-tie systems): Elastic laces don’t have excess ends to tuck. The keeper is irrelevant because the laces are already secured with a toggle or clip.
- Very short laces: If you’ve already shortened your laces by knotting or cutting, there may be no excess to tuck. The keeper becomes unnecessary.
- Shoes with a tongue that slides to one side: Some runners have narrow feet and the tongue shifts, causing the keeper to move off-center. In that case, the loop may not align with where your laces cross. You can still use it, but the tuck might feel crooked.
- Gaiter attachment: Some trail runners mistake the tongue loop for a gaiter anchor. It is not. Gaiter attachment points are usually sewn into the heel or under the toe rand. Never use the tongue loop to secure a gaiter — it’s not strong enough and will rip.
If you’re not on a trail or not worried about lace snags, you can safely ignore the keeper. It’s a convenience, not a necessity. But on uneven, rooty, or rocky terrain, it’s a small detail that can prevent a bad fall.
Realistic Example
Meet Dan, a 45-year-old trail runner who trains on technical singletrack in the Pacific Northwest. He bought a pair of ASICS Trabuco Max 5 shoes after reading reviews praising their cushioning and grip. During his first long run, he noticed the laces kept coming untied. He doubled them, but after a muddy section, the laces got tangled in a bush and he nearly tripped. Frustrated, he examined the shoe and saw the black loops. A quick search on a forum told him they were for tucking laces. He tried it: threaded both ends through the single loop, pulled snug, and tied a small overhand knot on top. On his next run, the laces stayed put for 15 miles. No snags, no re-tying. He now uses the keeper on every trail run and recommends it to his running club.
Dan’s experience is common. The keeper is not a gimmick; it’s a practical fix that most runners discover only after being annoyed by dangling laces.
Final Takeaway
If you own trail shoes with a stitched loop on the tongue, that loop is a lace keeper. Use it every time you run on trails. Thread the excess lace through the loop, pull tight, and forget about it. It takes five seconds, prevents snags and slips, and keeps your shoe lacing consistent. No extra gear, no cost, no downside. Next time you lace up, take that extra moment to tuck the ends — your ankles will thank you.
FAQs
How do I use the lace keeper on my ASICS Trabuco Max 5?
Thread each lace end through the central loop from bottom to top after tying your normal bow. Pull the lace ends tight so they’re held by friction. That’s it. If the lace is very long, wrap it around the loop twice before pulling tight. The keeper will hold the excess lace securely against the tongue, preventing it from dangling.
Can I cut off the tongue loop from my trail shoes?
You can, but it’s not recommended. Once removed, you lose the ability to stash excess lace neatly. You’ll have to double-knot or let laces dangle. Cutting the loop may also damage the tongue stitching. If you absolutely don’t need it, use a seam ripper carefully. But most runners find it useful after learning what it does.
Are tongue lace keepers the same as lace locks?
No, they serve different purposes. A lace lock (like a rubber toggle or plastic clip) secures the entire lacing system so you don’t need to tie a knot. A tongue keeper is a simple fabric loop that only holds the excess lace ends after tying. Lace locks replace the knot; the keeper tidies up the knot’s tails. They can be used together if your shoe has both.
Why does my shoe have two loops instead of one?
Some shoe models include two separate loops, one on each side of the tongue center, or two loops stacked vertically. This design lets you tuck each lace end individually. It can also accommodate different lace lengths if you prefer asymmetrical tension. Use both loops: one for the left lace, one for the right. The same tucking method applies.
Will the tongue keeper work with aftermarket laces?
It depends on the lace material and thickness. Standard flat laces (about 5–7 mm wide) work best. Round, waxed, or very thin laces may slip through the loop because they lack friction. Thick braided laces may not fit through the loop at all. If you swap laces, test the keeper before a run. If it slips, revert to the original laces or use a rubber lace lock instead.
Is the tongue loop on my shoe a gaiter attachment point?
No. Gaiter attachment points are usually located at the heel (under the Achilles area) and at the toe (under the lace cage). The small loop on the tongue is only for lace management. Using it to attach a gaiter can tear the loop or damage the tongue. Always refer to your shoe’s documentation for proper gaiter attachment.