A few thoughts on protection for your derriere. When I started skating, I didn't bother with crash pants, but after a few falls and limping home with bruised buttocks, I realized protection was necessary.
With little knowledge and little experience in this area, I searched on amazon and found Black Canyon Protective Ski Shorts. At £24, they seemed reasonable and affordable. The reviews were okay, getting 4 or 5 stars, with positive feedback. I went ahead and made the purchase.
On receipt, I inspected them, and arranged an immediate return to Amazon and a refund.
I've taken some heavy falls when skating in damp slippery conditions, with a lot of debris on the ground. The Black Canyon Ski Shorts, were way too poorly padded for my taste. The padding on the hips, thighs, and rear was wholly insufficient. It was more like polystyrene foam you find inside the packaging of TVs, DVDs, computers and other electronic goods. It's easily compressed between thumb and finger. No way was that going to protect bone or muscle from a heavy fall, at fast or slow speed.
Further falls persuaded me I had to pay more and get some serious protection for my rear end. I bought Demon Flex Force X Short D30 Body Protection - Black. The Demon Flex shorts contain D3O, an exotic material, which is normally soft and flexible, but on impact transforms and solidifies to become rigid, and provide protection. Returning to its previous soft state after the impact energy has dissipated.
The Demon Shorts were double the price of the Black Canyon Ski Shorts and I expected double the protection, which the shorts mostly provided. I did find the design of the shorts fell short in one area.
The Demon D30 shorts are comfortable with good fit well and provide plenty of protection for hips, thigh, buttocks and most importantly the coccyx. The coccyx is the tail bone at the end of the spine.
The bones on which you sit, the lowest bones are called ischial tuberosity and ischial ramus.
I had a couple falls on different occasions where the padding on the rear leg and coccyx padding opened to allow ischial bones to strike the floor without any protection.
The shorts look fine standing upright as in the photos. When you bend at the waist, the leg and coccyx padding separate, leaving just the thin layer of lycra material to save you from impact. Demon need to provide more padding here.
It's disappointing, so I can't recommend these shorts for skaters. Maybe they work for snowboarding or BMX. They certainly didn't work for me if I took a backwards fall when I hit a twig, pebble or just lost my balance.
I considered buying an ice hockey girdle, but my backwards skating has improved enough, I don't need so much protection now.
I feel comfortable enough to skate the first 15 to 20 mins of each session just working on backwards skating. I'm not great, but I'm not at the beginner stage either. I can't see myself blowing another £50 to £80 on new crash pants. I'd prefer to put the money towards new, better boots and better wheels.