Athletic Propulsion Labs (APL) exists in a unique space – somewhere between high-performance sportswear and luxury sneakers. The LA-based brand is best known for its Load ‘N Launch® technology, a midsole innovation designed to improve jump height (so effective that it was banned by the NBA). But APL isn’t just about performance – it’s also about aesthetics. Think ultra-minimalist trainers in muted, sophisticated colourways. The kind of footwear that works just as well with a tailored tracksuit as it does in the gym.
In terms of fit, APL sizing is snug – designed for a second-skin feel that hugs the foot rather than letting it move freely inside the shoe. If you’re used to looser, more forgiving sneaker silhouettes, you might need to reconsider your size. Here’s what you need to know.
Table of Contents
- APL sizing for running & training shoes
- xf sizing for slip-on models
- APL sizing for basketball shoes
- Sizing tips
- APL sizing chart
APL sizing for running & training shoes
APL’s core lineup – models like the TechLoom Pro, TechLoom Wave, and TechLoom Breeze – is built with movement in mind. These are lightweight, responsive trainers that feel more like socks than traditional sneakers. The uppers are constructed from stretch-knit fabrics that conform to the foot, offering a locked-in feel without being restrictive.
Key points:
- Fits snug – APL trainers are engineered for a close, sock-like fit.
- Minimal structure – expect a flexible, glove-like sensation rather than rigid support.
- True to size for a performance fit – but size up if you prefer a little extra room.
Sizing breakdown:
- TechLoom Pro – True to size.
- TechLoom Wave – True to size.
- TechLoom Breeze – True to size, but if in-between sizes, go up half a size.
- TechLoom Phantom – True to size, but if in-between sizes, or if not using for running, go half a size down.
The absence of a padded tongue or traditional overlays means there’s less margin for adjustment, so if you’re between sizes or prefer a more relaxed fit, follow the model-specific guidance above.
xf sizing for slip-on models
APL is one of the few brands that has managed to make slip-on trainers feel both functional and stylish. The TechLoom Bliss is its signature laceless sneaker – lightweight, streamlined, and designed for all-day wear rather than pure athletic performance. It’s ideal for travel, light workouts, or just looking effortlessly put together.
Key points:
- Hugs the foot – elasticated collar keeps it secure without laces.
- Slightly narrow fit – those with wider feet may want to size up.
- Best suited to casual wear or low-impact training.
Sizing breakdown:
- TechLoom Bliss – True to size.
It’s not a shoe for high-intensity workouts, but it’s an easy, comfortable option for days when you want to move quickly and avoid faffing with laces.
APL sizing for basketball shoes
APL made headlines when the Concept 1 was banned from the NBA, but its basketball-inspired silhouettes still exist – albeit in a more lifestyle-oriented form. Models like the Superfuture and Concept X are bulkier than APL’s running shoes, with higher ankle support and thicker midsoles designed for impact absorption.
Key points:
- More structured than APL’s other models – offers a locked-in, supportive feel.
- Fits true to size, but narrower than standard basketball shoes.
- Best for those who want a performance look with a lifestyle-friendly edge.
If you’re coming from brands like Nike or Adidas, these will feel more streamlined – less bulky, more refined.
Sizing tips
- Go true to size if you want APL’s intended snug, performance-oriented fit.
- Size up by half if you prefer a little more room in the TechLoom Breeze.
- Size down by half in the TechLoom Phantom if you’re between sizes or not using them for running.
- Consider foot shape – APL sneakers tend to run slightly narrow, so those with wide feet might need to adjust sizing.
- Break-in period – expect the knit uppers to stretch slightly with wear, moulding to the shape of your foot over time.
APL sizing chart
| UK | EU | US | CM |
| 4 | 36.5 | 6.5 | 23 |
| 4.5 | 37 | 7 | 23.5 |
| 5 | 38 | 7.5 | 24 |
| 5.5 | 38.5 | 8 | 24.5 |
| 6 | 39 | 8.5 | 25 |
| 6.5 | 40 | 9 | 25.5 |
| 7 | 40.5 | 9.5 | 26 |
| 7.5 | 41 | 10 | 26.5 |
| 8 | 42 | 10.5 | 27 |
Next up: These alternative running brands will level up your activewear game.
