They mean that there is room for the toes and a good feeling with the surface

making it an ideal choice for hikers

100% bluesign certified polyester mesh

For natural stability

Xero Shoes Kelso Mens Size:40.5 They mean that there isDescription Combines traditional design with barefoot principles. Ideal for sports, everyday use and office environments. Natural Toe Movement: Wide toe box ensures unlimited comfort for the feet. Ultralight Construction: Weighs only 300 grams in men's size 42, which increases mobility. Durable Construction: Made of quality leather and suede for long lasting use. Flexible Style: Easy to combine with different outfits, from sporty to casual. Barefoot